Prussian blue (#003153) is a very dark cool shade that appears across 10 master palettes in our corpus, most prominently in the work of Sonia Delaunay, Henri Lehmann, and Duccio and the Expressionism tradition. Master painters paired it most often with Khaki (#C3B091), Metallic Sunburst (#9C7C38), and Bone (#E3DAC9). The combination forms a moody, nocturnal chord, built on a complementary hue split, leans on warm companions to lift a cool source color, with a sharp light/dark contrast that lets the lighter companions read as highlights.
