Shadow (#8A795D) and Spanish gray (#989898) appear together across 6 master palettes in our corpus, most prominently in the work of Carl Gustaf Hellqvist, Jean-Honore Fragonard, and Willem van de Velde the Younger and the Realism tradition. Painters typically deployed shadow at an average of 28% of the canvas, with spanish gray at 15%. Third colors most often completing the combination include Khaki (#C3B091), Umber (#635147), and Bone (#E3DAC9).