Bone (#E3DAC9) and Gray (#808080) appear together across 6 master palettes in our corpus, most prominently in the work of Thomas Pollock Anshutz, Fujishima Takeji, and Paul Cezanne and the Post-Impressionism tradition. Painters typically deployed bone at an average of 32% of the canvas, with gray at 8%. Third colors most often completing the combination include Khaki (#C3B091), Quick Silver (#A6A6A6), and Eerie black (#1B1B1B).