Sumi palette
Umber Pavilion
From #a02640 ink through #b83e53, #00807f, #d75b6d to #009e9d light, Umber Pavilion is a tetradic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice.
redsumifive-stop
#a02640
#b83e53
#00807f
#d75b6d
#009e9d
The generator opens with #a02640 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.