Sumi palette
Poppy Foundry
Dark anchor, working middle, light release: #8e2700, #c24f2c, #e16b48, #e88365, #ffa489 form a analogous sumi set with somewhere to stand at every lightness. Made for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#8e2700
#c24f2c
#e16b48
#e88365
#ffa489
The generator opens with #8e2700 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.