Chinese red (#AA381E) and Smoky black (#100C08) appear together across 6 master palettes in our corpus, most prominently in the work of Frans van Mieris the Elder, Cristofano dell'Altissimo, and Gentile da Fabriano and the Baroque tradition. Painters typically deployed chinese red at an average of 27% of the canvas, with smoky black at 15%. Third colors most often completing the combination include Bistre (#3D2B1F), Zinnwaldite brown (#2C1608), and Café noir (#4B3621).