Drab dark brown (#4A412A) and Shadow blue (#778BA5) appear together across 6 master palettes in our corpus, most prominently in the work of Léo Gausson, Aurelio Tiratelli, and Marcantonio Franceschini and the Impressionism tradition. Painters typically deployed drab dark brown at an average of 18% of the canvas, with shadow blue at 12%. Third colors most often completing the combination include Eerie black (#1B1B1B), Pine green (#2A2F23), and Khaki (#C3B091).