Sumi palette
Autumn Crater
From #7d0013 ink through #b8242e, #d84648, #de6360 to #fe7f7b light, Autumn Crater is a tetradic progression that holds together at any size. Use it for craft brewery cans lined up in a cooler door. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7d0013
#b8242e
#d84648
#de6360
#fe7f7b
The generator opens with #7d0013 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.