Sumi palette
Perennial Kiln
Dark anchor, working middle, light release: #6c2311, #964d3b, #b36754, #bc7a6a, #da9684 form a triadic sumi set with somewhere to stand at every lightness. Made for ceramics and home goods shot against white seamless. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#6c2311
#964d3b
#b36754
#bc7a6a
#da9684
The generator opens with #6c2311 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.