Sumi palette
Oaken Shrine
Dark anchor, working middle, light release: #731800, #b32c00, #d34b2a, #d9664a, #f88365 form a split-complementary sumi set with somewhere to stand at every lightness. Made for bakery boxes stamped with a single ink color. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#731800
#b32c00
#d34b2a
#d9664a
#f88365
The generator opens with #731800 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.