Café noir (#4B3621) and Dark electric blue (#536878) appear together across 6 master palettes in our corpus, most prominently in the work of Georg Heinrich Crola, Rudolf von Alt, and Nicolas Poussin and the Romanticism tradition. Painters typically deployed café noir at an average of 21% of the canvas, with dark electric blue at 8%. Third colors most often completing the combination include Eerie black (#1B1B1B), Raisin black (#242124), and Metallic Sunburst (#9C7C38).