Sumi palette
Seafoam Plaza
Five sumi stops with room to breathe — #b82004 grounds, #e65941 and #ff7d65 do the talking, #ff9985 softens, #ffc6ba lifts. The triadic bones keep it coherent across hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#b82004
#e65941
#ff7d65
#ff9985
#ffc6ba
The generator opens with #b82004 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.