Sumi palette
Indigo Archive
Dark anchor, working middle, light release: #8f1e2b, #a7363e, #007177, #c65257, #008f95 form a tetradic sumi set with somewhere to stand at every lightness. Made for tea packaging where the flavor color does the talking.
redsumifive-stop
#8f1e2b
#a7363e
#007177
#c65257
#008f95
The generator opens with #8f1e2b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.