Eerie black (#1B1B1B) and Onyx (#353839) appear together across 6 master palettes in our corpus, most prominently in the work of Joseph Stella, Anita Malfatti, and Claude Monet and the Futurism tradition. Painters typically deployed eerie black at an average of 30% of the canvas, with onyx at 19%. Third colors most often completing the combination include Bistre (#3D2B1F), Davy's grey (#555555), and Khaki (#C3B091).