Heliotrope gray (#AA98A9) and Khaki (#C3B091) appear together across 6 master palettes in our corpus, most prominently in the work of Vittorio Corcos, Louise Abbéma, and Hendrick Cornelisz Vroom and the Realism tradition. Painters typically deployed heliotrope gray at an average of 24% of the canvas, with khaki at 9%. Third colors most often completing the combination include Middle grey (#8B8680), Raisin black (#242124), and Shadow (#8A795D).