I have bowls with the green, blue, and purple, on white, that look like your idea. Not this one but like it:

http://www.corelle.com/index.asp?pageId=53&pid=50

And in denser ("color-saturated") colors: http://www.corelle.com/index.asp?pageId=53&pid=275 and http://www.corelle.com/index.asp?pageId=53&pid=64

If you print it and take to to there paint store you can compare yellows against it.

~S~