Copper penny (#AD6F69) and Raisin black (#242124) appear together across 6 master palettes in our corpus, most prominently in the work of Daniel Seghers, John Steuart Curry, and Anton Raphael Mengs and the Baroque tradition. Painters typically deployed copper penny at an average of 23% of the canvas, with raisin black at 6%. Third colors most often completing the combination include Dark lava (#483C32), Shadow (#8A795D), and Khaki (#C3B091).