Columbia Blue (#B9D9EB) and Khaki (#C3B091) appear together across 5 master palettes in our corpus, most prominently in the work of Carle Vernet, Konstantinos Maleas, and Adolf Lasinsky and the Romanticism tradition. Painters typically deployed columbia blue at an average of 16% of the canvas, with khaki at 10%. Third colors most often completing the combination include Isabelline (#F4F0EC), Silver chalice (#ACACAC), and Black olive (#3B3C36).