Sumi palette
Cobalt Bluff
From #771b00 ink through #b13a19, #d05737, #d76f54 to #f68b6f light, Cobalt Bluff is a complementary progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#771b00
#b13a19
#d05737
#d76f54
#f68b6f
The generator opens with #771b00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.