Sumi palette
Woolen Lagoon
From #9c1d00 ink through #ca5139, #e96d54, #f0866f to #ffac99 light, Woolen Lagoon is a analogous 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
#9c1d00
#ca5139
#e96d54
#f0866f
#ffac99
The generator opens with #9c1d00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.