Sumi palette
Cordovan Pier
Dark anchor, working middle, light release: #9d192e, #b53441, #00797d, #d4525a, #00969c 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
#9d192e
#b53441
#00797d
#d4525a
#00969c
The generator opens with #9d192e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.