Sometimes the manufacturers of the paints have color charts that show
mixing samples. Call or write to them and ask, or ask in an art supply
store. Also, there are books available on color mixing. I don't know
specific titles, but I am sure that I have seen books on painting with
acrylics or watercolors that show paint color mixtures. I know a really
nice book on watercolor was "Making Color Sing." But it was out a long
time ago. Not sure it is still available. Hope this helps you.
Visit our student's web art gallery at St.John's School
click on "Stories of SJS," click on "Arts Stories," click on Linda
Woods' name. View artwork by Lower, and Middle School students as well
as our art archives.