Sumi palette
Polar Bluff
From #933325 ink through #bf6050, #de7b6a, #e69181 to #ffb0a1 light, Polar Bluff is a tetradic progression that holds together at any size. Use it for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#933325
#bf6050
#de7b6a
#e69181
#ffb0a1
The generator opens with #933325 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.