Sumi palette
Foggy Grove
Dark anchor, working middle, light release: #a71f07, #d5553f, #f5725a, #fb8b75, #ffb7a8 form a triadic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a71f07
#d5553f
#f5725a
#fb8b75
#ffb7a8
The generator opens with #a71f07 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.