I made PowerPoint template on PowerPoint 2010 for PC and everything seemed to be just fine.
But when I opened it on my Mac (PPT 2011), I could see the background color was wrong. So I tripple checked the RGB-values on the background and they was OK.
So I tried to write some text over the background with the SAME RGB-value on the text as on the background. There was clearly a difference here. It seems to me that the text got the correct color and the background is wrong.
I tried to do the same thing on a blank presentation (and blank document in Word) and I could reproduce the same result.
Why is there a difference in the background color and the text color when they both have got the same RGB-value?