Sumi palette
Obsidian Boulevard
Five stops tuned to sit together without fighting — #762a1c ink anchors the set, #e69e8f opens it up, and #a15445, #bf6f5f, #c88274 cross the middle in a split-complementary arrangement. Obsidian Boulevard suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#762a1c
#a15445
#bf6f5f
#c88274
#e69e8f
The generator opens with #762a1c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.