Deep Space Sparkle (#4A646C) and Shadow (#8A795D) appear together across 6 master palettes in our corpus, most prominently in the work of Nicolaas van der Waay, Lucien Baylac, and Edward Jean Steichen and the Realism tradition. Painters typically deployed deep space sparkle at an average of 20% of the canvas, with shadow at 11%. Third colors most often completing the combination include Khaki (#C3B091), Ebony (#555D50), and Black olive (#3B3C36).