A set of colors that are used in an artwork, and the way they are combined in an artwork; sometimes called a palette. A color scheme is particularly harmonious if its colors are aesthetically compatible with a root color. In devising such a palette, artists might employ theories or principles of color harmony. Examples include achromatic, monochromatic, complementary, analogous, split complementary, and triadic (three) color schemes.Quotes: "Why do two colors, put one next to the other, sing? Can one really explain this? No. Just as one can never learn how to paint." Pablo Picasso (1881-1973), Spanish artist. Arts de France, no. 6 (Paris; 1946; translated in Dore Ashton, Picasso on Art, 1972). "He who knows how to appreciate color relationships, the influence of one color on another, their contrasts and dissonances, is promised an infinitely diverse imagery." Sonia Delaunay (1885-1979), French painter. Quoted by Jacques Damase in Sonia Delaunay: Rythms and Colors. Also see colorways and tonal key.