Bone (#E3DAC9) and Jet (#343434) appear together across 6 master palettes in our corpus, most prominently in the work of Leon Spilliaert, Arthur Segal, and Pasquale Celommi and the Dada tradition. Painters typically deployed bone at an average of 52% of the canvas, with jet at 14%. Third colors most often completing the combination include Khaki (#C3B091), Middle grey (#8B8680), and Shadow (#8A795D).