Sumi palette
Brindle Granary
Dark anchor, working middle, light release: #872300, #c73a04, #e7592f, #ed7452, #ff9a7d form a split-complementary sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#872300
#c73a04
#e7592f
#ed7452
#ff9a7d
The generator opens with #872300 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.