Middle yellow red (#ECB176) and Smoky black (#100C08) appear together across 6 master palettes in our corpus, most prominently in the work of Paul Delvaux, Ustad Mansur, and Agnolo Bronzino and the Surrealism tradition. Painters typically deployed middle yellow red at an average of 29% of the canvas, with smoky black at 8%. Third colors most often completing the combination include Bistre (#3D2B1F), Zinnwaldite brown (#2C1608), and Kobicha (#6B4423).