Four rounded square shapes turned in a diamond formation 2x2 to make a larger diamond. There is no space between the canvases, so center where they meet creates a shape from the negative space. Each is a rich color, primary blue, green, red, and also a violet color, each has a black tip painted on the outer edge

Constellation Blue Violet Green Red, 1968

Acrylic on canvas
36 x 36 in. 91.4 x 91.4 cm.