Cool grey (#8C92AC) and Russet (#80461B) appear together across 6 master palettes in our corpus, most prominently in the work of Albrecht Durer, Paul Leroy, and Samuel Palmer and the Northern Renaissance tradition. Painters typically deployed cool grey at an average of 17% of the canvas, with russet at 8%. Third colors most often completing the combination include Copper (#B87333), Khaki (#C3B091), and Dark sienna (#3C1414).