Bone (#E3DAC9) and Dark slate gray (#2F4F4F) appear together across 6 master palettes in our corpus, most prominently in the work of Jessie Arms Botke, Paul Revere, and Émilie Charmy and the Naturalism tradition. Painters typically deployed bone at an average of 25% of the canvas, with dark slate gray at 10%. Third colors most often completing the combination include Space cadet (#1D2951), Khaki (#C3B091), and Silver pink (#C4AEAD).