Dark slate gray (#2F4F4F) and Princeton orange (#F58025) appear together across 3 master palettes in our corpus, most prominently in the work of Albert Gleizes and the Cubism tradition. Painters typically deployed dark slate gray at an average of 4% of the canvas, with princeton orange at 7%. Third colors most often completing the combination include Middle red purple (#A55353), Ash gray (#B2BEB5), and Russian green (#679267).