Sumi palette
Steely Moor
From #740c33 ink through #a03f59, #be5a73, #c77083 to #e58b9e light, Steely Moor is a analogous 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
#740c33
#a03f59
#be5a73
#c77083
#e58b9e
The generator opens with #740c33 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.