Sumi palette
Cinnamon Square
Five stops tuned to sit together without fighting — #a93100 ink anchors the set, #ffc1ae opens it up, and #d7613d, #f77d59, #fd9575 cross the middle in a tetradic arrangement. Cinnamon Square suits craft brewery cans lined up in a cooler door. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a93100
#d7613d
#f77d59
#fd9575
#ffc1ae
The generator opens with #a93100 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.