Correct Colours In .xls export

Hi,
I am trying to produce an excel xls form that has correct screen colour reproduction in numbers & when used as a .xls file in the numbers spreadsheet application
I have been trying this various ways but cannot seem to find a correct solution.
For example, I have tried filling cells with a RGB reference,
I can set correct RGB colour references for a fill colour say R 254, G,242 B,205 in numbers. This looks fine but if I then open in excel, these colours change to R 255, G 241, B193
I am not sure why.
I had thought of creating each colour as an image fill from numbers but excel does not support this option?
Could anyone advise me the best way to go about this please?

At least with older versions of Excel, I believe they actually did not use RGB per se, but rounded the values to the closest thing in their 56 color palette. So even though it said RGB, it actually was not. I thought that had changed at least, since Office 2007 or older.
Honestly I have never found a solution. With presentations, I know if I make one in Keynote, but the forum specifies they will be use Powepoint, I make it a point to check my slides in Powerpoint on a Windows machine. Even in the past, going from MS Office for Mac to MS Office for Windows did not maintain colors (although they would usually be close and not so much it rendered things unreadable). I never did get a real answer to why their own product on different platforms was not consistent in color - even HEX colors would be off
Hopefully some people on the MS side will have a better answer for you - I just got frustrated pursuing it years ago and just gave up looking for an explanation or fix. I suppose it is possible that excel still has some internal library fixed limit on colors (hopefully more then 56 by now) and is in fact, matching your values "as close to" its internal limts as possible. I also seem to recall that at one time, the RGB function in excel actually returned values in the order BGR - don't know if that still applies either.

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R a i n b o w 7000I work on behalf of HP
Click the “Kudos Thumbs Up" at the bottom of this post to say
“Thanks” for helping!
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see this posting:
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http://apex.oracle.com/pls/otn/f?p=31517:1
------------------------------------------------------------------------------

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