Sumi palette
Gleaming Lighthouse
From #812a0b ink through #ac563b, #ca7155, #d3856d to #f1a188 light, Gleaming Lighthouse is a triadic progression that holds together at any size. Use it for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#812a0b
#ac563b
#ca7155
#d3856d
#f1a188
The generator opens with #812a0b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.