Indigo dye (#00416A) and Khaki (#C3B091) appear together across 6 master palettes in our corpus, most prominently in the work of Jean Metzinger, Toros Roslin, and Alexander Osmerkin and the Cubism tradition. Painters typically deployed indigo dye at an average of 13% of the canvas, with khaki at 6%. Third colors most often completing the combination include Umber (#635147), Raisin black (#242124), and Shadow (#8A795D).