I loved Wayne Thiebaud's "Circle Dip" cover for a recent New Yorker food issue. It's not well reproduced on the internet - see if you can find a copy at the library. It's a totally different kind of color wheel.A radish isn't just red, after all. It's also cobalt blue, and snow white, and yellow, depending on how you look at it. I love this piece. It's gorgeous.
And Joan Brown. Girl in Chair.