Indigo dye (#00416A) and Quinacridone magenta (#8E3A59) appear together across 3 master palettes in our corpus, most prominently in the work of Nina Arbore, and M. H. Maxy and the Impressionism tradition. Painters typically deployed indigo dye at an average of 7% of the canvas, with quinacridone magenta at 13%. Third colors most often completing the combination include Beige (#F5F5DC), Moss green (#8A9A5B), and Russian violet (#32174D).