Gunmetal (#2a3439) and Khaki (#C3B091) appear together across 6 master palettes in our corpus, most prominently in the work of Michael Zeno Diemer, Agnes Goodsir, and Giovanni Battista Torriglia and the Romanticism tradition. Painters typically deployed gunmetal at an average of 26% of the canvas, with khaki at 18%. Third colors most often completing the combination include Shadow (#8A795D), Ebony (#555D50), and Zinc gray (#655B55).