Sinopia (#CB410B) and Smoky black (#100C08) appear together across 6 master palettes in our corpus, most prominently in the work of Francesco Ribalta, Edwin Henry Landseer, and Thomas Sully and the Romanticism tradition. Painters typically deployed sinopia at an average of 31% of the canvas, with smoky black at 9%. Third colors most often completing the combination include Zinnwaldite brown (#2C1608), Oxblood (#4A0000), and Dark sienna (#3C1414).