RGB and CMYK blend spaces for document creation

If I create a new document with the print profile it sets the blend space to CMYK. Will I be seeing a true representation of the colours or do I need to switch to an RGB blend spaces while creating the document then switch to CMYK when I'm ready to print?

I'm wanting to know what to set the colours to while I'm working on the document to make sure the colours I choose are going to be the same as what I print. I'd use RGB while creating a document onscreen then change to CMKY when I'm printing to maintain a true representation of colours. Can I do the same thing using the transparency blend space?

Similar Messages

  • Designing art for both RGB and CMYK

    I need to make some artwork that might be viewed in both RGB and printed with CMYK. I know I can switch the color mode after making the artwork, however, I'm concerned with color shifting when changing from RGB to CMYK or the other way around. How do you design something that you can both print and display on screen without compromising the colors?
    Thanks.

    Generally, is there much if any color shift when going from CMYK to RGB?
    Even if a given color is within the gamuts of both CMYK and RGB color spaces, that does not necessarily mean that color shifts will not occur.
    You can't think of the RGB and CMYK versions of "a color" as "equivalents." There is not just one set of CMYK values for a given set of RGB values. A simple way to think about it is this: Take the product of three numbers. Now divide that number into four factors. Obviously, there is more than just one set of four values possible.
    So switching back and forth between RGB and CMYK color spaces in willy-nilly fashon is not good practice. The software has to make a translation decision out of many possibilities. It does it according to your so-called "color management" settings. Even then, the software does not keep a breadcrumb trail of all of your switches back and forth. So colors can still drift.
    Design for print first. Then repurpose for web. Color is not the only reason for this.
    JET

  • I would like to design a poster, when I place my photos on the page  under the "links" "colour space" section it says the colour space is RGB not CMYK even though my document is set up as CMYK.  Can/do i need to change this?  i am worried it will be a pro

    I would like to design a poster, when I place my photos on the page
    under the "links" "colour space" section it says the colour space is RGB not CMYK even though my document is set up as CMYK.  Can/do i need to change this?  i am worried it will be a problem when my poster goes to the commercial printers who want CMYK

    Yes, it will be a problem. Convert the images in Photoshop using the printer's color profiles or a standard CMYK profile.
    Mylenium

  • Transparency and color blend space: fail!

    Hi there. I keep trying to export my pdf, to no avail.
    I get an error that pops up that says there is an error with my transparency and color blend space.
    HOWEVER, all my images are set to CMYK (it says so in the links panel) and my transparency blend space is also set to CMYK. I have no errors in my preflight panel. When I ignore the message and continue to export, the image looks completely different and not the way I want it to show up.
    Please let me know how I can fix this error! Thanks so much!

    Document CMYK is the assigned profile in Edit>Assign Profiles.... Working CMYK is Color Settings...>Working Spaces>CMYK. If there's no profile assigned, document and working are the same. So in this case Document CMYK is Coated FOGRA27 and Working CMYK is US Web Coated SWOP—the assigned FOGRA is color managing the document's native CMYK colors not the working US SWOP

  • Why does Illustrator automatically change RGB and CMYK values

    Hi, I am struggling to understand why Illustrator is changing the values inside the RGB and CMYK boxes. I am also not sure of the exact relationship between these values. Essentially, it appears that if you set the Document Color Mode to RGB, it leaves the RGB values that you type in alone. If you set the Document Color Mode to CMYK, it leaves the CMYK values alone.
    But as soon as you change the Color Mode, it automatically modifies the values. So if you were in RGB mode and you set some RGB values, it changes those RGB values when you switch to CMYK mode. And vice versa.
    I had thought that the CMYK palette was a subset of the RGB palette. It would make sense to me if it did this when I switched from RGB to CMYK mode, but it doesn't make sense to me why it does this when I switch from CMYK to RGB mode.
    The other thing I am confused about is the relationship of the values in the RGB boxes to the values in the CMYK boxes. I would have thought that the relationship between them would be static. Actually, it is not. When I am in CMYK mode and I enter a CMYK value of 90 16 0 0, the RGB values become 0 158 222. But when I switch over to RGB mode, the RGB values of 0 158 222 result in CMYK values of 75 23 0 0.
    Very confusing.
    Thanks in advance if you can explain this behavior!
    Best Regards,
    Z.

    Color management.
    Hi, I am struggling to understand why Illustrator is changing the values inside the RGB and CMYK boxes. I am also not sure of the exact relationship between these values. Essentially, it appears that if you set the Document Color Mode to RGB, it leaves the RGB values that you type in alone. If you set the Document Color Mode to CMYK, it leaves the CMYK values alone.
    An Ai document can be either RGB or CMYK. The colors follow the document color mode and thus are converted immediately if they don't match.
    But as soon as you change the Color Mode, it automatically modifies the values. So if you were in RGB mode and you set some RGB values, it changes those RGB values when you switch to CMYK mode. And vice versa.
    Same reason.
    I had thought that the CMYK palette was a subset of the RGB palette. It would make sense to me if it did this when I switched from RGB to CMYK mode, but it doesn't make sense to me why it does this when I switch from CMYK to RGB mode.
    It's not. CMYK color spaces (there are more than just one) are normally smaller than RGB color spaces, but they aren't a "subset".
    The other thing I am confused about is the relationship of the values in the RGB boxes to the values in the CMYK boxes. I would have thought that the relationship between them would be static. Actually, it is not. When I am in CMYK mode and I enter a CMYK value of 90 16 0 0, the RGB values become 0 158 222. But when I switch over to RGB mode, the RGB values of 0 158 222 result in CMYK values of 75 23 0 0.
    When Illustrator converts the colors, it uses color management: the profiles you set up and the methods you set up. After converting it forgets the color that used to be. When converting "back", it uses color management again.
    When you convert an very bright RGB color, it be out of the CMYK gamut. So it get's converted to the closest possbile CMYK color (which might still be far away from the original color. But it's not possible to convert it "back" to the bright one unless you just revert the conversion (by Cmd/Ctrl + Z).

  • RGB or CMYK colour formatting for iPhoto Albums printing.

    Hi.
    I'm putting my first iPhoto Album together. Info given from Apple about what colour format to use for your photos, says to use RGB. While this is corrcet for digital monitors and screens. Mass printing uses CMYK. Any images supplied to a printers in RGB will colour shift when printed in CMYK. No matter what a printer tells you, these colour shifts can be very noticable. I'm an Advertsing Art Director and I've seen the shift that happens.
    I will be checking/colour correting all photos submitted to the iPhoto Album with Adobe Photoshop. And many will very probably undergo some corrections. Be it through levels, curves, hue/saturation, etc. Nothing to anything near an excessive level, but enough to make obvious improvements.
    So I will then be faced with the choice of whether to save the images out in RGB or CMYK.
    Can someone with some technique knowledge, from the iPhoto team, tell me/reasure me why RGB has been specified? And if CMYK wouldn't actually be a preferable colour format to supply in, considering you'll be printing them in CMYK.
    Many Thanks, Jim.

    You're absolutely correct. I was referring to notes make a number of years ago in regards to iPhoto 5  and that RGB was recommended for both books and prints. 
    I was confusing CMYK with Grayscale with Dot Gain 20% profile when stating iPhoto didn't support it which it didn't fully support until iPhoto 9.
    In fact I just ran a test with iPhoto 6, 7 and 8 with a CMYK AND GrayScale files with the following results:
    iPhoto 6 (06): wouldn't import CMYK but did GrayScale.  The grayscale file would only display as a black thumbnail and negative full image.  If the DotGain 20% profile was stipped from it the iamge would dispaly normally.
    iPhoto 7 (08): wouldn't import CMYK but did GrayScale.  The grayscale file would only display as a black thumbnail and negative full image.  If the DotGain 20% profile was stipped from it the iamge would dispaly normally.
    iPhoto 8 (09): neither file would import which is surprising:
    iPhoto 9.2.3 (11):  both imported and viewed normally.
    iPhoto 9.4 (11):  both imported and viewed normally.
    In Oct, 2007 I got an email from Apple support with the following:
    Also as iphoto makes a pdf of the book and then uploads it to keep the size down, it doesn't matter if the pics are RGB or CMYK as a pdf is a closed file. But since it is going through prinergy it has an RGB checker so this most be switched off. It is how the software in prinergy handle's it that causes the washed out affect as it takes the Red Green Blue colours and tries to convert to Cyan Magenta Yellow Black. Now the colour spectrum in printing between rgb and cmyk is quite different looking at a colour wheel will show you. The best way i can describe it is if you have a pantone book which has spot on one side and process on the other you can see a colour difference. Or if you use quark open up the colours and again switch between process and spot.
    BUT ONLY CONVERT PICS TO CMYK IF YOU ONLY INTEND TO ORDER BOOKS. IF YOU INTEND TO ORDER PRINTS IT WILL NEED TO BE RGB.
    Here's how i see it:
    1. Apple doesn't want 2 different versions of the pics floating about as running CMYK through a photomachine (as prints you would order in the high street) will not print correctly.
    2. RGb's going through a CMYK press using prinergy will attempt to convert and produce the washed out effect, or yellowing effect BUT will still print.
    So it will use the 2nd option as it will still produce prints normally and books with a slightly washed out effect. Now to most people in the high street, who will notice a difference?
    I have just received my latest book saved as CMYK pics in tiff format and no washed out effect. What i will say is The quality if still not as good as a print. Now we use a docucolour 5252 at work and the colour quality is better. I wonder how often the machine is calibrated and what colour curve it is set to?
    However, I am unable to import a CMYK file in any iPhoto version until iPhoto 9. Go figure.
    Thanks for the feedback.  Hadn't addressed this particular subject in quite a long time.

  • How to select matching RGB and CMYK colors

    Starting from scratch for a client, how do I select matching RGB and CMYK pairs?
    Say we find a nice red colour in RGB for screen use, how do I then find the correct CMYK for print? And what assumptions do I have to make when doing this, if any?
    Would it be the same for the other way around (choose CMYK first for print and then find the RGB equivalent)
    Is it more sensible to start with a Pantone colour and then find the RGB and CMYK equivalents for that?
    Many thanks
    RobbieG
    (I'm working with Ai, Ps and Id CS6)

    Yes.  Better to start with Pantone reference books where you are viewing the color in a reflective environment.  As already mentioned, color on the monitor can be deceptive.  And, I think the others are basiclt saying that you should have everything calibrated and use color management policies in your apps.  There is a way to find CMYK equivalents using Photoshop's color palette.  Let's say you have an RGB Red as the foreground color in Photoshop.  If you double click on the swatch you will get Photoshop's color palette which lists the RGB percentages, CMYK percentages, LAB percentages, and HEX web color for that Red.  You can go further and select "Custom" and the Pasntone Spot color palette opens and gives you the closest Spot color value for that Red.  This however, depends on your color settings.  That's why I recommend you start with the Pantone swatch book and get the perecentages of CMYK from their formula guide which is set to industry standard color.

  • Why do the relative values of RGB and CMYK change when switching between Photoshop and InDesign?

    I'm trying to put together a Colour Guide for my company's brand guidelines.
    I initially worked from InDesign and wrote down all the H, RGB, and CMYK values that I got when I eye-dropped my original colour palette.
    However when I put the same RGB values into Photoshop- I am given a (slightly) different set of CMYK numbers from those that I had originally documented in InDesign.
    Why is this???

    Jamie,
    in Photoshop go to Edit > Color Settings and choose your  parameters:
    For RGB: sRGB or AdobeRGB (1998)
    For CMYK: the process as recommended by your printer (person, company)
    For offset printing this is here ISOCoated-v2-eci and elsewhere for instance SWOP.
    For digital printing you should ask the company as well.
    For Grayscale: Gray Gamma 2.2
    For Spot: probably irrelevant in the moment. Dot Gain 20%
    Everything as shown here:
    For your application I've modified my settings a little, therefore we can see top left 'unsynchronized'.
    In InDesign do practically the same, but there are no settings for Grayscale.
    You'll find for any topic explanations if you move to by mouse (position the pointer over ...).
    The field 'Settings' shows not 'Custom' but the file name of a configuration which had been previously saved
    and then loaded (buttons top right).
    Further explanations on request. It would be quite useless to explain everything now at the same time.
    The colors will be wrong if the settings are not synchronized. Above they are explicitly synchronized.
    Because Bridge was not used, the system considers them as 'not synchronized', which doesn't matter.
    Best regards --Gernot Hoffmann

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    Hi ,
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  • Need CMYK for printer... but msg "document is using CMYK blend space..." concerning

    Hello all,
    I need to create an output PDF that is CMYK for the printer.
    I thought I was doing everything correctly until I got this message that was generated when I selected Export (to PDF), "The document is using CMYK space. Colors are converted to RGB in interactive PDF files. To avoid color changes, click Cancel and choose Document RGB from the Edit > Transparency Blend Space menu. Click OK to continue."
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    You are a lifesaver!
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  • Eyedropper tool RGB and CMYK help!

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  • For Superior Stability and Responsiveness: Use Spaces for Every App as Much as Possible

    Hi. It's great to share this experiement. It's Hard to Crash Mountain Lion OS X with Spaces or even bring out the spinning wheel.
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    .All that while running Cinebench 11.5 which taxes the CPU at almost and GPU 100% but surprisingly the fps shooter and Marble Worlds 3D games didn't crawl as I expected.Having an ambient temperature of about 30 Celsius, with full load the CPU temp was at 66, GPU was at 88, fans where surprisingly at CPU and optical disk fans were only at 900+ rpm with hardisk at 1000+ rpm which is the only 'side effect' to having taxing the system like this (I still have Applecare and Time Machine backup for a worry free test) is it confuses the SMC because without load all fans were at 1000+ rpm (I brough it back to normal with a SMC reset). All these for hours and there's still 1GB memory to use out of the 8GB (with 100GB hardisk space).
    When I closed all 11 Spaces and brought all the apps to just one desktop, it wasn't as stable nor as responsive like I have experienced before. Marble World when you switch to it, would have artifacts, the game was almost a slide show. If you have lots of clips to copy past from on the Desktop and you have to hide all to see the finder and then Show All, Carbon Cloner would not show up right away and would have that spinning wheel. I quitted all the apps to prevent a crash and to bring temperatures down.
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    Thank you for your time.
    God bless.

    Hi. It's great to share this experiement. It's Hard to Crash Mountain Lion OS X with Spaces or even bring out the spinning wheel.
    Any OS (it's good to have Windows, OS X and Linux all at the same time, best of all worlds) should probably be stable if each app was on a separate desktop environment or separate account (with the main one logged in, in the background). The permission were repaired (it crashed the last time I tried this with just one Spaces) using Disk Utility in Mountain Lion's Recovery partition.
    Testing the overall stability and responsiveness: more than 12 app including Cinebench 12, Winclone, 2 3D Games from App Store (not Crysis or Rage but helps stress things along with Cinebench), all default Mountain Lion apps except Time Machine launched in one windows , Winclone cloning BootCamp a Win8 (upgraded from Win7) for hours, playing two 3D games (shooter Uberstrike and Marble World, fulscreen windowed) from App Store, Carbon Copy Cloner, watching a fullscreen movie on VLC, Activity monitor and iStats to see how the temperatures, CPU, GPU and memory are doing), quicktime playing a catholic chant in a loop- anything to bring the Mac, the whole system to a crawl, spinning wheel of death or to a crash which it didn't. Launching and relaunching app on their on Spaces was responsive even with all the system taxed at almost 100%.
    There was around 12 Spaces running at the same time on the iMac i7 with 8GB. It's not the most convenient way to switch between apps (having everying in one Spaces and clicking on it still the best, followed by swithing via Dock), the gestures and mission control significantly made it easier to have so many Spaces and not that much of a burden to manage when you get used to it. It's much better than Windows 8 implementation for a less cluttered environment. The command-tab is good to combine with Mission Control gestures for switching from fullscreen apps.
    .All that while running Cinebench 11.5 which taxes the CPU at almost and GPU 100% but surprisingly the fps shooter and Marble Worlds 3D games didn't crawl as I expected.Having an ambient temperature of about 30 Celsius, with full load the CPU temp was at 66, GPU was at 88, fans where surprisingly at CPU and optical disk fans were only at 900+ rpm with hardisk at 1000+ rpm which is the only 'side effect' to having taxing the system like this (I still have Applecare and Time Machine backup for a worry free test) is it confuses the SMC because without load all fans were at 1000+ rpm (I brough it back to normal with a SMC reset). All these for hours and there's still 1GB memory to use out of the 8GB (with 100GB hardisk space).
    When I closed all 11 Spaces and brought all the apps to just one desktop, it wasn't as stable nor as responsive like I have experienced before. Marble World when you switch to it, would have artifacts, the game was almost a slide show. If you have lots of clips to copy past from on the Desktop and you have to hide all to see the finder and then Show All, Carbon Cloner would not show up right away and would have that spinning wheel. I quitted all the apps to prevent a crash and to bring temperatures down.
    At first the Mountain Lion was almost a regret with some crashes but with Spaces, Misson Control and gestures for Mission Control, It's bring out the value and it just incredibly stable and responsive (Linux have their multiple desktop environment but Apple's implementation makes you see everything like a map almost bringing the convenience of just one desktop with all the apps placed strategically so you can click and switch to it faster). It's a great way to do a lot of things when you need to without worrying about slowing things down to a crawl.
    Thank you for your time.
    God bless.

  • Colors change in objects in both RGB and CMYK formats

    I've recently upgraded to CS6 and also to OS 10.8...  Im working in multiple Illustrator docs using a color of 100-87-32-32. When I change objects to that color by keying it in to the color pallete, it changes. If I click off, go away and come back the color shifts to 100-82-36-29 or something similar.
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    Are you in the corect color mode?
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