I am not an artist, but my GF is. She never uses black and rarely uses white. Instead she uses two or three pairs of complimentary colors in a painting from a

I am not an artist, but my GF is. She never uses black and rarely uses white. Instead she uses two or three pairs of complimentary colors in a painting from a (virtual) color wheel with much more gradation than the one shown in the article. She uses the cool compliment for shadows, for example. The result, using a palate of only four or five colors, is a painting of surprising richness.