Sumi palette
Stormy Glade
Five sumi stops with room to breathe — #721d00 grounds, #a1462b and #bf6145 do the talking, #c7765e softens, #e69179 lifts. The tetradic 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
#721d00
#a1462b
#bf6145
#c7765e
#e69179
The generator opens with #721d00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.