Firebrick (#B22222) and Khaki (#C3B091) appear together across 6 master palettes in our corpus, most prominently in the work of Fedir Krychevsky, Marthe Donas, and John William Godward and the Expressionism tradition. Painters typically deployed firebrick at an average of 18% of the canvas, with khaki at 9%. Third colors most often completing the combination include Brown sugar (#AF6E4D), Cedar Chest (#C95A49), and Wheat (#F5DEB3).