Sumi palette
Plum Square
Plum Square runs #862400 through #b94b2a, #d86746, #df7e62 to #fe9a7d in five measured steps, the analogous structure keeping every neighbor honest. Reach for it for tea packaging where the flavor color does the talking. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#862400
#b94b2a
#d86746
#df7e62
#fe9a7d
The generator opens with #862400 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.