Dark sienna (#3C1414) and Sepia (#704214) appear together across 6 master palettes in our corpus, most prominently in the work of Odilon Redon, Clara Peeters, and Marcus Stone and the Romanticism tradition. Painters typically deployed dark sienna at an average of 20% of the canvas, with sepia at 12%. Third colors most often completing the combination include Smoky black (#100C08), Metallic Sunburst (#9C7C38), and Golden brown (#996515).