Sumi palette
Coral Archive
From #9d373a ink through #ca6463, #e9807d, #f19692 to #ffbbb8 light, Coral Archive is a complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9d373a
#ca6463
#e9807d
#f19692
#ffbbb8
The generator opens with #9d373a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.