Blood red (#660000) and Smoky black (#100C08) appear together across 6 master palettes in our corpus, most prominently in the work of Leon Wyczółkowski, Francesco Ribalta, and Frans van Mieris the Elder and the Baroque tradition. Painters typically deployed blood red at an average of 29% of the canvas, with smoky black at 9%. Third colors most often completing the combination include Chinese red (#AA381E), Zinnwaldite brown (#2C1608), and Dark brown (#654321).