Bistre (#3D2B1F) and Raisin black (#242124) appear together across 6 master palettes in our corpus, most prominently in the work of Joseph Highmore, Rembrandt Peale, and Samuel Morse and the Baroque tradition. Painters typically deployed bistre at an average of 40% of the canvas, with raisin black at 25%. Third colors most often completing the combination include Coffee (#6F4E37), Drab dark brown (#4A412A), and Van Dyke brown (#664228).