Café noir (#4B3621) and Light slate gray (#778899) appear together across 6 master palettes in our corpus, most prominently in the work of Alexandre-Louis Leloir, Christian Ernst Bernhard Morgenstern, and Gaetano Gandolfi and the Romanticism tradition. Painters typically deployed café noir at an average of 15% of the canvas, with light slate gray at 9%. Third colors most often completing the combination include Eerie black (#1B1B1B), Khaki (#C3B091), and Zinc gray (#655B55).