Blue bell (#A2A2D0) and Chinese red (#AA381E) appear together across 6 master palettes in our corpus, most prominently in the work of Piero di Cosimo, and Diego Rivera and the High Renaissance tradition. Painters typically deployed blue bell at an average of 3% of the canvas, with chinese red at 5%. Third colors most often completing the combination include Cultured Pearl (#F5F5F5), Raisin black (#242124), and Platinum (#E5E4E2).