Sumi palette
Heather Deck
Five sumi stops with room to breathe — #7e001b grounds, #b0363f and #cf5358 do the talking, #d66c6d softens, #f68888 lifts. The split-complementary bones keep it coherent across newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7e001b
#b0363f
#cf5358
#d66c6d
#f68888
The generator opens with #7e001b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.