Sumi palette
Sienna Mesa
Five stops tuned to sit together without fighting — #840100 ink anchors the set, #ff8978 opens it up, and #bc2f23, #dc4e3f, #e26a5a cross the middle in a analogous arrangement. Sienna Mesa suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#840100
#bc2f23
#dc4e3f
#e26a5a
#ff8978
The generator opens with #840100 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.