Light slate gray (#778899) and Shadow (#8A795D) appear together across 6 master palettes in our corpus, most prominently in the work of Federico del Campo, Antonio González Velázquez, and Stefano Bersani and the Academic Art tradition. Painters typically deployed light slate gray at an average of 21% of the canvas, with shadow at 10%. Third colors most often completing the combination include Khaki (#C3B091), Bone (#E3DAC9), and Silver chalice (#ACACAC).