Sumi palette
Icy Foundry
Dark anchor, working middle, light release: #a43611, #d16545, #f08160, #f7977b, #ffc0ad form a analogous sumi set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a43611
#d16545
#f08160
#f7977b
#ffc0ad
The generator opens with #a43611 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.