Sumi palette
Gleaming Crossing
Five stops tuned to sit together without fighting — #a12900 ink anchors the set, #ffb5a2 opens it up, and #d45432, #f4714f, #fa8a6c cross the middle in a analogous arrangement. Gleaming Crossing suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a12900
#d45432
#f4714f
#fa8a6c
#ffb5a2
The generator opens with #a12900 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.