Bistre (#3D2B1F) and Shadow blue (#778BA5) appear together across 6 master palettes in our corpus, most prominently in the work of Carl Rungius, Ferdinand Bellermann, and Karel Dujardin and the Baroque tradition. Painters typically deployed bistre at an average of 19% of the canvas, with shadow blue at 10%. Third colors most often completing the combination include Eerie black (#1B1B1B), Coffee (#6F4E37), and Shadow (#8A795D).