Dark purple (#301934) and Violet-blue (#324AB2) appear together across 6 master palettes in our corpus, most prominently in the work of Hans Holbein the Younger, Luigi Russolo, and Aristarkh Lentulov and the Cubo-Futurism tradition. Painters typically deployed dark purple at an average of 15% of the canvas, with violet-blue at 7%. Third colors most often completing the combination include Silver pink (#C4AEAD), Cultured Pearl (#F5F5F5), and Heliotrope gray (#AA98A9).