Sumi palette
Icy Deck
Dark anchor, working middle, light release: #9f0700, #d24232, #f2604e, #f87c69, #ffa89a form a triadic sumi set with somewhere to stand at every lightness. Made for tea packaging where the flavor color does the talking. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#9f0700
#d24232
#f2604e
#f87c69
#ffa89a
The generator opens with #9f0700 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.