Onyx (#353839) is a deep neutral shade that appears across 19 master palettes in our corpus, most prominently in the work of Ernst Ludwig Kirchner, Georgi Mashev, and Willem van Aelst and the Expressionism tradition. Master painters paired it most often with Khaki (#C3B091), Eerie black (#1B1B1B), and Bistre (#3D2B1F). The combination forms a grounded, archival chord, pulls a neutral anchor into a warm composition, with the pair colors held at a similar value to the source.
