Rich black (#010203) and Xanthous (#F1B42F) appear together across 5 master palettes in our corpus, most prominently in the work of Hoca Ali Riza, and Cimabue and the Intimism tradition. Painters typically deployed rich black at an average of 13% of the canvas, with xanthous at 6%. Third colors most often completing the combination include Raisin black (#242124), Dark sienna (#3C1414), and Bistre (#3D2B1F).