Dark purple (#301934) and Steel blue (#4682B4) appear together across 6 master palettes in our corpus, most prominently in the work of Emily Carr, and Marianne von Werefkin and the Post-Impressionism tradition. Painters typically deployed dark purple at an average of 6% of the canvas, with steel blue at 5%. Third colors most often completing the combination include Maximum blue (#47ABCC), Charcoal (#36454F), and Old lavender (#796878).