Sumi palette
Copper Lighthouse
Five stops tuned to sit together without fighting — #9d3700 ink anchors the set, #ffbba1 opens it up, and #d05f30, #ef7b4d, #f6926c cross the middle in a split-complementary arrangement. Copper Lighthouse suits newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#9d3700
#d05f30
#ef7b4d
#f6926c
#ffbba1
The generator opens with #9d3700 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.