Sumi palette
Silken Cabin
Dark anchor, working middle, light release: #a8150c, #c03326, #007c8b, #e05242, #0099ac form a tetradic sumi set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice.
redsumifive-stop
#a8150c
#c03326
#007c8b
#e05242
#0099ac
The generator opens with #a8150c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.