Bone (#E3DAC9) and Cool grey (#8C92AC) appear together across 6 master palettes in our corpus, most prominently in the work of Konstantinos Maleas, Konstantinos Parthenis, and Paul Signac and the Post-Impressionism tradition. Painters typically deployed bone at an average of 19% of the canvas, with cool grey at 10%. Third colors most often completing the combination include Khaki (#C3B091), Silver pink (#C4AEAD), and Raisin black (#242124).