Sumi palette
Raw Mill
From #9e3b21 ink through #ca684e, #e98469, #f19981 to #ffbeac light, Raw Mill is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9e3b21
#ca684e
#e98469
#f19981
#ffbeac
The generator opens with #9e3b21 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.