Air superiority blue (#72A0C1) and Bistre (#3D2B1F) appear together across 6 master palettes in our corpus, most prominently in the work of Henry Mosler, Albrecht Altdorfer, and Heinrich Hansen and the Academic Art tradition. Painters typically deployed air superiority blue at an average of 14% of the canvas, with bistre at 9%. Third colors most often completing the combination include Drab dark brown (#4A412A), Eerie black (#1B1B1B), and Khaki (#C3B091).