Bistre (#3D2B1F) and Wild blue yonder (#A2ADD0) appear together across 6 master palettes in our corpus, most prominently in the work of John O'Connor, Salvator Rosa, and Peter von Hess and the Romanticism tradition. Painters typically deployed bistre at an average of 17% of the canvas, with wild blue yonder at 8%. Third colors most often completing the combination include Khaki (#C3B091), Eerie black (#1B1B1B), and Middle grey (#8B8680).