Sumi palette
Indigo Mill
From #89002c ink through #bd364f, #dd5469, #e36f7c to #ff8e99 light, Indigo Mill is a triadic progression that holds together at any size. Use it for packaging that photographs well under harsh retail light. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#89002c
#bd364f
#dd5469
#e36f7c
#ff8e99
The generator opens with #89002c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.