Applying RGB values to a Colour Mask. Is this doable?

Hello FCPX wizards.
I could use a little advice. I shot some garments on a white background. One of the garments was a pinkish/magenta color. It is fire engine red in the footage. Everything else is fine. Just the pink garment is off. I created a color mask and then found using the Colour Adjustments very crude. The client has offered a Pan tone number which I understand I should be able to translate into RGB numbers. Is there a way to apply specific RGB numbers to my color mask? How do I stop areas of similar color outside of my intended mask area (just that one garment) from being affected.
Thanks for any guidance.
A.T.

You can use the Keyer to chroma key the fire engine red color.
If it were me, I think I would try to color correct the clip to lighten the garment color, set the saturation to 0 (the luminosity of fire engine red is much darker than pink/magenta would be) and overlay the whole thing with a Solids > Custom generator (set to the color of your choice) with the Video > Compositing > Blend Mode set to Overlay.
I would place the Chroma Keyed clip over both the above.
There might be better ways...

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How to change the text color of a label by using RGB values without changing the background colour?

xCode interface builder:
When I try to change the color property of a label's text by using the RGB values, the background color also changes to the same value automatically.
in other words:
While setting the RGB values for text colour of labels, the background colour also changes unless we use the sliders.
How to make sure that only the color of text changes and not the background?

You can simply do this.
[labelname setTextColor:[UIColor colorWithRed:38/255.0f green:171/255.0f blue:226/255.0f alpha:1.0f]];

How to find the RGB Values of a Color for Hyperion

When customizing your Hyperion forms, we come across situations where we need the exact RGB value of a given color. This article explains a simple technique to find the RGB values using MS Paint and the Calculator applications that come as standard applications with your operating system.
Here are the steps to find the exact RGB value of a given color.
1) View your Hyperion form using IE, scroll down until you see the color you want to find the RGB value and press the "Print Screen" button (in your keyboard).
2) Open MS Paint and click Edit -> Paste or simply Ctrl+V. What you saw in the browser will be copied as a new untitled image.
3) Select the Color Picker tool and click on an area that has the color you want to match.
4) Now go to Edit Colors... option and click on the "Define Custom Colors >>" button. The color you picked will be selected on this palette. At the bottom right hand corner you will see the Red, Green and Blue values you need. Note down the R,G,B values (given in decimal).
5) Now we need to find out the hexa-decimal values that correspond to those decimal values. This is where we use the simple Calculator. Open the Calculator application from Program -> Accessories. Switch to the scientific mode by clicking View ->Scientific.
6) By default it will be in the decimal number mode. Enter the R value (238 in this example) and click on the Hex radio button. The corresponding hexa-decimal value (EE in this case) will be shown in the dial.
The selected color in this case has the same value for R, G and B. (In fact, all shades of gray has the same values for R, G and B.) Therefore, the RGB value of the background color that we need is #eeeeee. Repeat step 6 to find out the hex value for the Green and Blue elements, if they are different.
Tip:
If you find it difficult to pick a color, zoom the image by pressing Ctrl+PageDown or using View -> Zoom -> Custom... option.

These tips are to find the RGB color of HFM default row where row is text and text lines in data columns are also visible to business users as Yellow as an input cell. By applying the same RGB color you can apply the same color to your data cells or rows. This post shows how to identify color from any web view-able object.
Regards,
Manaf

RGB values shifted by Keynote

I'll start off by confirming that I'm running the lastest downloads of everything Apple software update has to offer.
I've used the DigitalColor Meter to read RGB values for a colour that I've seen on a website and fancy using as a background for my Keynote presentations. The values are incidental, I guess, but here they are: 241, 241, 213. Welcome to putty.
In Keynote, I've put these figures into the RGB control box and yet to my eyes while the colour created is close to my target, it is obviously not the same.
When I use DigitalColor Meter to read the values of what Keynote has actually created, it shows 239, 248, 218. This is while Keynote simultaneously shows that the colour I am using is exactly the one for which I've given it the figures 241, 241, 213.
This clearly isn't a monitor calibration problem, but a Keynote-not-reading-its-own-colour-input-boxes problem!
Just to be double-sure, I've set Keynote to use a suitably coloured Word page as its background image and, unsurprisingly, the DigitalColor Meter shows that Keynote can show 241, 241, 213.
I'm sure that I've done this in the past without this hiccough. Any suggestions, please?
Thanks
Brinley
MacBook C2D 2Ghz Mac OS X (10.4.9)
MacBook Mac OS X (10.4.9)

The RGB figures for the colour that the Keynote generates from the 'magnifying-glass' method rather than 'manual input' method match the target website colour exactly: 241, 241, 213. Keynote thinks it is reproducing these figures and DigitalColor Meter confirms that it actually is ... the values are no longer 'shifted' in the way that prompted my question.
You've almost certainly asked a question which is at the centre of this, though: I forgot that I bought a Huey colour-calibration device and so my display is now set to whatever that thought best. The colour profile that that device has generated is way better than the Mac default, which set the contrast much too high (everything was both washed out and neon at the same time, somehow) and blue-tinged.
This explains why I got the manual input method to work before--that predates my purchase of the Huey.
Thanks for your prompt and clear input!
MacBook Mac OS X (10.4.9)

Problem with RGB Values for Canvas Type ‚Horizontal Toolbar' in Webforms 10

Hello,
I have a problem with the canvas type ‘Horizontal Toolbar’ in Webforms 10g.
When I try to set or change the RGB value of a ‘Horizontal Toolbar’ with the forms function
Set_Canvas_Property(‘my_horizontal_toolbar’, BACKGROUND_COLOR, rgb-value)
(at runtime) it has no effect in Webforms 10g for the canvas type ‘Horizontal Toolbar’ (the background color of the horizontal toolbar doesn’t change).
But it works fine for other canvas types like ‘Stacked’ or ‘Content’.
In Oracle 6i (Client / Server) this function works quiet well (even for the ‘Horizontal Toolbar’ canvas type).
The reason why we are using rgb values instead of visual attributes in this case is, that the color of the ‘Horizontal Toolbar’ should be customizeable (via a RGB Field) for our customers (at runtime).
Further more we are using the same technique for Text-Field-Items, Content- and Stacked-Canvases (and all works fine).
Maybe it has something to do with the pre-configured IAS color-schema (blaf).
But changing the color schema (e.g.: from 'blaf' to 'red') has no effect also.
Thanks for your help.

This is probably bug 777312. Call Support for the latest info on this bug and for help getting it fixed.

Why is FrameMaker using different CYMK/RGB values for Pantone library colours compared with Illustrator?

Evening all -
this is by no means the first time I'm banged my head against the colour management brick wall, and I doubt it will be the last
I am running Frame 12 and Illustrator CC on Windows 7.
Both these Adobe products ship bundled with Pantone libraries. (Correct me with I'm wrong, but these "libraries" are basically a bunch of look-up tables, mapping named Pantone colours to various CYMK, RGB, etc equivalents?)
Can anyone tell me why these two different Adobe applications appear to give different definitions for the same Pantone colours?
For example, if I choose the Pantone Coated library > 'Warm Red'
In Illustrator CC (left screenshot), it offers this as C0% M87.4% Y79.9% K0%
in FrameMaker 12 (right screenshot), I get C0% M79% Y91% K0%
Why are they different?
Are the library definitions shipped with the products simply different?
Frame's dialog ominously mentions "© Pantone, Inc., 1986, 1988"
And if I go to C:\Program Files (x86)\Adobe\AdobeFrameMaker12\fminit\color and open the corresponding .bcf file in an editor, the header says:
"BCF 2.0PANTONE¨ Coated 1.1 ©Pantone, Inc., 1986, 1988.PANTONE¨* Computer Video simulations displayed may not match PANTONE-identified solid color standards. Use current PANTONE Color Reference Manuals for accurate color. To order publications from Pantone, Inc., in the U.S. please call the toll-free number (800) 222-1149 [within NJ, call (201) 935-5500]. In other countries contact your local Pantone representative. *Pantone, Inc.'s check-standard trademark for color.[1]"
whereas if I go to C:\Program Files (x86)\Adobe\Adobe Illustrator CC\Presets\en_US\Swatches\Color Books and open the corresponding .acb swatch file in there, in amoungst the hex gibberish I note it says:
"�=$$$/colorbook/PantonePlusCoated/title=PANTONE+^R Solid Coated/$$$/colorbook/PantonePlusCoated/prefix=PANTONE *$$$/colorbook/PantonePlusCoated/postfix= CK"$$$/colorbook/PantonePlusCoated/description=Copyright^C Pantone LLC, 2010"
Have Pantone perhaps changed their colour definitions between 1988 and 2010?
(I'm thinking it would be sensible to establish this one way or the other before we get into any convoluted discussions about the Windows GDI etc etc)

David,
What options did you use for defining the colours internally and what options for output in AI? I suspect that if you examine the EPS file you created from AI for the Panotne 355C, the only values in there are the CMYK ones - no LAB nor RGB. So FM has to use the algorithm mentioned in the other thread and creates the lime green based upon the algorithm. If you have set the AI drawing to an RGB color mode and set the EPS export option for "Include CMYK Postscript in RGB files" to OFF, then you would get the desired RGB values in the EPS file.
If you're so intent on using Pantone Spot colours to get RGB, then you can create your own ACF library file with the exact RGB definitions that you want (you can then use whatever values you get in Photoshop, Illustrator or whatever source that you're trying to match). The structure of the file is as follows:
ACF 1.0
My Color Library             <---- name of library
LibraryVersion: 1.0
Copyright: © 2014 <your name here>. All rights reserved.
AboutMessage: User defined Spot colours for RGB
Names: Partial
Rows: 4
Columns: 4
Entries: 1           <---- number of colours in file
Prefix:         <---- used for display in FM, e.g. "Panotne"
Suffix:           <----- used together with prefix, e.g. "CVC, CVU, etc."
Type: Process <---- Spot, Process, Tint, Mixed (need to add specifier to Data lines)
Models: CMYK RGB
PreferredModel: RGB     <---- whatever you want
Data:
0.98 0.11 1.00 0.02              <---- CMYK values (0-1)
0 38143 19967     <---- RGB values as 16-bit, i.e. 16-bit = ( [RGB value (1-255)]*256) + 255; zero is still zero
Spruce Green                   <---- name of colour
The acf file needs to be installed in the fminit\color folder.
Also, a note of caution, If you screw something up in the acf file (like the incorrect number of entries in the file or you're missing a component value, this will hang FM if you use the View > Color > Definitions... option. You'll need to kill FM, fix or remove the ACF file and re-start. Also, FM only reads the libraries at the start, so if you need to make any changes to the ACF definitions, you have to r-start FM for those changes to take place.
[I know, FM doesn't make it easy, but it can be done...]

When I open a jpg file in Firefox, it has different RGB values than when I open it in Microsoft Paint or Picture and Fax Viewer. What kind of color management does Firefox apply to jpg files?

In Firefox, the RGB values are 50, 255, and 25. In Paint, they are 81, 171 and 67. These colors look quite different. I suspect Firefox is doing something with the

Does Firefox use the embedded color profile if there is one? How can I tell if there is one in a jpg and what it is?

How to apply a 'calculated' radius in Unsharp Mask en mass?

In about a week's time, when I've finished applying Curves to about 1200 B&W images, I'll be ready to apply an Unsharp Mask to each of them. Exactly how I'll do that I'm not certain yet, but I've been reading my Photoshop CS Bible (Deke McClelland) in preparation. On page 503 it states:
If you're looking for a simple formula, I recommend 0.1 of Radius for every 15 ppi of final image resolution... If you have a calculator, just divide the intended resolution by 150 to get the ideal Radius value.
For example, at 300 ppi use Radius = 2. Such a recommendation is just that: a recommendation (and not 'ideal' as he also states), but I've taken it as a good starting point; and while I've been adding Curves I have also been experimenting with Unsharp Mask and various Radii (but not yet saving the sharpened images).
McClelland's statement is not clear regarding what Radius should be used if you are NOT working on the image at final resolution. I think I know what the answer is, but I want to confirm.
Some background: I'll be printing on a Xerox iGen running a colour line screen at 175 lpi. The printer wants the images to be 300 ppi. The images at the moment range from an effective ppi of about 100 to 2000, depending on how much they have been scaled in InDesign. So I've got resolutions all over the place which at some point I will have to tidy up. Those images below about 250 ppi, I will be upsampling to 300. Those above about 450 ppi (this may change), will be downsampled to 300 when I convert to PDF.
I have some questions:
QUES 1
Say I have an image at 1200 ppi, that will be downsampled to 300 ppi. Should I do the sharpening on the 1200 ppi image, or on the downsampled 300 ppi image? i.e Will it make any difference to the final printed result if sharpening is done before or after downsampling?
QUES 2
I think the statement:
I recommend 0.1 of Radius for every 15 ppi of final image resolution
should read
I recommend 0.1 of Radius for every 15 ppi of image resolution
Surely the Radius (assuming you accept the figures McClelland gives) depends only on the resolution of the image you are working on. i.e if you have a 1500 ppi image, use a Radius of 10 (1500/150), NOT a Radius of 2 (300/150) -- the final image resolution that is sent to the printer. Is that a correct reading of McClelland's recommendation?
QUES 3
My experiments indicate that for the type of images I am using, McClelland's recommendation oversharpens, at least for my liking. I will probably use half the figure he suggests: Radius = 1 for 300 ppi.
Given that I have about 1200 images, if I was going to apply an Unsharp Mask manually this is what I would do:
1. Put all the layers in each image into a Group.
2. Calculate the Radius to be applied to each image from the formula: Radius = (IMAGE PPI) /300.
3. Apply an Unsharp Mask to the Group using the calculated Radius (plus Amount = 50, Threshhold = 0)
Of course I'm not going to do this manually -- well, I hope I'm not -- but what is the best way? Could an Action handle all of this? A Script? A combination of both? Something else entirely? Not possible in PS?
In summary: I want to automatically apply a variable Radius that depends on the image's resolution. Possible?

The PDF says, for one of the steps:
Command-click the duplicate channel to make the edge mask a selection.
When I do that, a selection outline appears, but I can't work out, or find out, what conditions are applied to make the selection. Any ideas? I may have to start a separate thread for this question. I don't like to blindly follow recipes. I like to know what's going on.
Guy,
I'm not sure I understand your question. With command click, the channel is the selection. White = fully selected, black = not selected. It's all the steps made to create the channel that affect the selection. To me the selection edges are visually interfering with a soft mask, I usually hide the edges.
In post 9 steps 2-6 all contribute to the final section. Find edges identifies the edges. Median has a smoothing effect. Maximum expands the selection a little, then the gaussian blur softens it.
This process (post 9) works for me when I sharpen images, but you may not like it. Sometimes no mask at all is a viable option - some folks like a grainy/noisy appearance in non-edge areas. Some people may even purposefully add noise to create that kind of look.
With USM the radius thickens the light and dark areas of edges, and amount intensifies (lightening the light, darkening the dark). Threshold is just what it's name implies, it sets a parameter for Ps to apply the sharpening or not (but it can result in a pockmarked look in smooth areas, so I like 0)
I always look at images at actual pixels in Ps when sharpening. With sharpening there is room for opinion. Some people like thicker edges (higher radius). Some people go easy on the amount, some people are more aggressive.
It's the scaling in ID that makes things difficult, because actual pixels won't give you a true print appearance. To correct this the image either needs to be scaled to size in PS, and placed at 100% in ID - OR left as is in ID, and the resolution changed in PS (300 x % i.e. 300 x 25% = 75 PPI)
I like to start with radius 1 and 100 amount but these values are always subject to change. I wish it was an exact science but it's not. I like sharp images, but I don't want icicles in eyebrows either. I believe you said 175 LPI screening, so if it was me I would err on the sharp side...
Something else I just thought of - the print size is something to think about, too. Consider the two extremes (which may or may not apply to your project) - thumbnails, and posters. If it's a thumbnail, by the time you've got the scaling right in Ps, there really isn't much pixel information left! In his instance a lot of sharpening probably wouldn't hurt, it would create contrast (which is important in very small images). The other end of the spectrum - posters. Actual pixels may be a little misleading in this case, because when the average person looks at a poster, they don't get right up on it at a normal reading distance, they view it from several feet away. For this reason sometimes poster images are only half-resolution, to keep the file size manageable, and give a more realistic view perspective.
Hope this helps. I am not a forum expert. The others may have better advice, or may see errors in my information.

Legalities of color-and why are my RGB values inconsistent?

Hi there,
I have a client who is trying to trademark their logo and the RGB values. I have sent them the files and corresponding RGB values, but when they check the files in their mac Digital Color Meter they come up with different values. On my own computer, the values are consistent in the DCM and Photoshop, although I opened it on another computer and found that while the values were still correct when I open the files in Photoshop, the DCM values were incorrect there too.
Does anybody have any history with this? Should I just tell them to ignore their DCM and that Photoshop is correct, or am I doing something wrong with profiles or something? It wouldn't be such a big deal but for the legal implications behind it...
Thanks for any help!!
Eli

I was referring to "Scene Referred" CCchart Lab reference numbers derived from measurements taken of this chart from a spectrophotometer. You'll note the black patch is at L20 according to X-rite. The white patch is quite easy to attain L96 without clipping during exposure of the CCchart to build the profile from using DNG Profile Editor.
What's not easy to control during exposure is the contrast ratio recorded by the camera. Adjusting the middle slider in Levels or the Contrast slider in ACR will show just how much contrast affects hue and saturation viewed on a display. Reality doesn't behave this way.
Contrast/Luminance ratio's are disregarded or barely adjusted for in the DNG CCchart Wizard to come up with proper hue/saturation levels for each of the 18 color patches. The contrast adjusts required to get all 24 patches to match exactly (especially black at L20) makes the image not look right or follow a normal human visual response or perception.
You can adjust contrast in the image after applying the new profile to get a reasonably correct look but quite a few of the 24 patches go off the charts according to the X-rite reference Lab numbers. The whole reason for going by the Lab numbers in profiling a device like a DSLR in the first place is to maintain consistency image to image by using measured results. As you can see this is not possible to achieve in a photograph except maybe in a controlled studio environment, but it does work when trying to match single spot colors that aren't influenced by the surround effect that affects human perception inherent in a photographed scene. A pleasing photograph is not about accurate numbers.
A spectrophotometer is a static device that only reads and measures color wave lengths from color patches and converts them to Lab numbers. It's not a constantly adjusting device like our eyes which adapts to hue, saturation, color temp and contrast levels in any given scene.
I'm going to post three images of a CCchart exposed under a high noon sun that I used to build two different DNG profiles. The first is using ACR default DNG converted source image and doing a straight dual illuminant table profile according to instructions. They're screenshots that include Apple's DCM to show how the black patch changes to accommodate exact Lab numbers as opposed to achieving a pleasing look. You'll note the more the image is made to "pop" the less accurate the Lab readouts and appearance.

DigitalColor Meter - RGB Values Don't Match?

I've saved a 16 color palette under 'Colors' in the 'TextEdit' application. Each color has been set by directly typing in the values for R, G and B, for example one of the colors is R=68, G=255, B=153.
If however I open the 'DigitalColor Meter' application, which is set to 'RGB As Actual Value, 8-bit' and move the aperture over the same color in the 'Colors' window the DigitalColor Meter reports the RGB values of that color differently to what was set. For the color mentioned above it reads R=73, G=250, B=151.
Why don't the two match as they should? This happens with any color, but not black, white or a shade of grey.
If I save an image from a website by draging the image to the desktop then open the image and use the DigitalColor Meter to compare the RGB values of any given pixel in the saved image to those of the same image displayed on the webpage then again the RGB values between the two will not quite match, but black, white or a shade of grey will.
If however I save the image to my desktop by using >Apple-shift-4 to grab the image then the RGB values do match.
Can someone explain exactly what's going on? Does it have something to do with perhaps OS X applying gamma correction to the screen so that any image displayed on the screen will have its RGB values slightly altered?
If this is the case why isn't the DigitalColor meter affected or does it read a pixel's RGB values directly from graphics memory instead of screen memory where the gamma correction is being applied, not that I know how a Mac's graphics are organized, but I'm assuming anything to be displayed on the screen first has to be fetched from graphics memory.
Powermac G4 Quicksilver Dual 1 GHz Mac OS X (10.4.10) 1.5 GB SDRAM, 120 GB HD, 23" Cinema Display
Powermac G4 Quicksilver Dual 1 GHz Mac OS X (10.4.10) 1.5 GB SDRAM, 120 GB HD, 23" Cinema Display

Well this is a day of debugging I'd rather have back.
With a form of Rubber ducking my colleague helped me notice that the number of items being displaced was equal to the number of page zero item I added recently.
These items were placed in my menu region, which happens to be region position 7.
I had commented out a section of my page template

but this content was obviously still being generated.
At some point during the page submission, this disturbed what apex was doing - somewhere these 'duplicated' yet commented field definitions were causing apex_application.accept to store the values in locations offset by the four P0 items.
I often look to page zero for potential causes to strange issues - but this one initially beat me.

Color management: RGB values

Working mass production with Aerial Photography. 8 bit color, scanline tifs
Client request RGB values of light gray areas be within 5 of each other. For example: Red 130, Green 132, Blue 135.
Need batch routine to run on 15,000 images. If it is even possible. Looking for options in CS3 or any other program.

Most automated processes are not able to recognize which objects should be
true gray. For example, PS's auto color or auto levels would make a blue
lake to gray.
I'd recommend a combined manual and batch process. The operator would
check a known gray area on about every 100th image, convert the image to
Lab mode, and define a set of curves that would correct the color cast.
Then use a batch operation to apply that curve to 100 images centered on
that image. This would take 150 manual operations.
If the weather is constant, you may be able to increase the batch size
considerably. By the same token, for changing sun angle, cloud cover or
other situations that affect the color, you may need to increase the number
of manual checks.

Is it possible to alter a Color's RGB value ?

I'd like the Color references I'm using to stay referring to the same object when I change the color values. So ideally I'd like to change the RGB values of these Colors, since making new Color objects is obviously not what I want.
Neither Color nor ColorSpace have anything to offer, and googling hasn't turned up much.
I have to do it this way, because several classes all have their own reference to the Color, so creating a new Color for one reference won't change them all.
Any suggestions?

Cheers for the blog post Kirill ;o) That's a really neat trick :)
Since every inbuilt Java class I know of uses
getRGB(), this is all that's needed :o)
No worries about the Java classes you don't know of,
or whether anyone else on your project might use
"getRed()" etc? And you've ditched alpha information
too.No-one else is working on my project mate ;o) And despite your sarcasm, you are right - there aren't any worries about Java classes I 'don't know of', since the colours I'm using are only read for rendering; nothing more. Every method I have that affects the colours deal with WebColor, so that's fine. Graphics.setColor(WebColor wc) works fine too, with my 'nasty hack', as you call it. So I'm more than happy, I assure you.
If it was me doing a nasty hack like that I'd at
least override everything so it was a stable nasty
hack instead of an unstable one ;o)Well that's the difference between us then; I don't do work that I know won't be needed :D
I'm just being facetious, because I was slightly offended by your taunting tone, itchy :oP I know you're right, of course. What I've said above is true, but obviously I agree that a stable class that can be used generically is far better than my case-specific code. I'll be changing my class to kilrillg's nifty code right now :o)
Thanks again Kirill.

Why I am getting different RGB Values in photoshop vs. Illustrator?

The RGB values differ between Illustrator and Photoshop. The same file opened in photoshop displays different RGB values although the the colour was input correctly in illustrator. Both files were saved and reopened within the RGB colour space. There is a zero value in the desired RGB colour scheme, could this have something to do with it?

RGB values relate to the color space used. The same color in sRGB and Adobe RGB will have very different numbers (and vice versa).
There is no such thing as "RGB color space". That's a color mode, not a color space. There is only sRGB, Adobe RGB, ProPhoto RGB etc.

How do I get hexadecimal code or rgb values of the color in a selection?

I have a color. I need to know what its hexadecimal code is or what its rgb values are. I cannot find any tool or interface element in Photoshop that discovers the hexadecimal code or rgb values of a color in a selected area.
I have searched in the User Guide on every phrase I can think of, and not one gets a hit.
Any help will be appreciated.
Thanks,
Jeff

Easiest way is to click on the foreground colour which opens the Color Picker dialog box, and changes the cursor to the eye dropper. Now click on the colour. If it is crucial that it uses your selected area, copy the selection to a new layer. I have no idea if you want a point sample, or average of entire selection or what though?

RGB Values & Powerpoint

Hi, this may be too basic of a question for this forum, but for a particular Kuler scheme I would like to know the RGB values for each of the colors. My intent is to manually apply certain colors to elements in a power point presentation.
So, help displaying RGB codes would be appreciated. And/if anyone has any tips getting the colors into powerpoint I could use the help.
Thanks
Scott A.

If you were to have Adobe Photoshop or illistrator or even one of the suites you could get these values. There are so many of them we are talking million in an 8 bit image. Now if you were to just want your basic red green and blue values there are millions. The other thing is how they are applied in Power point. I reccomend you visit kuhler for all the pantone colors. Then visit Lynda.com on color correction and working with color. They all start with the basic break down of how RGB applied. This is cool what you are studying and think if you visit the two places mentioned especially working with color in photoshop it will show you the theory your looking for and how you could demonstrate it in another program. Then Calibration is huge to make your numbers look like the color you want to represent. I hope this helps you I have delved into that subject quite a bit lately and when you demonstrate your values make sure your monitor is calibrated so that when you play power point your values and colors are good. There are monitor calibrators on the net and you may have one on your computer for your monitor. I used the Color Munki that calibrates my printer and monitor. It displays well in accross all my applications.

Applying RGB values to a Colour Mask. Is this doable?

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