Persian plum (#701C1C) and Smoky black (#100C08) appear together across 6 master palettes in our corpus, most prominently in the work of Adolphe Yvon, Wyndham Lewis, and Hermann Schneider and the Romanticism tradition. Painters typically deployed persian plum at an average of 33% of the canvas, with smoky black at 11%. Third colors most often completing the combination include Dark sienna (#3C1414), Zinnwaldite brown (#2C1608), and Bistre (#3D2B1F).