Eerie black (#1B1B1B) and Spanish bistre (#807532) appear together across 6 master palettes in our corpus, most prominently in the work of Gerard Terborch, Giuseppe De Nittis, and Philippe de Champaigne and the Baroque tradition. Painters typically deployed eerie black at an average of 29% of the canvas, with spanish bistre at 14%. Third colors most often completing the combination include Drab dark brown (#4A412A), Olive Drab (#3C341F), and Bistre (#3D2B1F).