Bone (#E3DAC9) and Ebony (#555D50) appear together across 6 master palettes in our corpus, most prominently in the work of Keisai Eisen, Varvara Stepanova, and Mykola Yaroshenko and the Edo period (1603–1867) tradition. Painters typically deployed bone at an average of 26% of the canvas, with ebony at 16%. Third colors most often completing the combination include Khaki (#C3B091), Shadow (#8A795D), and Eerie black (#1B1B1B).