Retro palette
Umber Reef
From #ac4119 ink through #006bb6, #007873, #cb5d37 to #00968f light, Umber Reef is a tetradic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice.
orangeretrofive-stop
#ac4119
#006bb6
#007873
#cb5d37
#00968f
The generator opens with #ac4119 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.