Chestnut (#954535) and Shadow (#8A795D) appear together across 6 master palettes in our corpus, most prominently in the work of Galileo Chini, Jan Toorop, and Henri Jules Ferdinand Bellery-Defonaines and the Art Nouveau tradition. Painters typically deployed chestnut at an average of 22% of the canvas, with shadow at 13%. Third colors most often completing the combination include Khaki (#C3B091), Raisin black (#242124), and Eerie black (#1B1B1B).