Sumi palette
Cobalt Grove
From #980c28 ink through #b02c3b, #007378, #cf4b54 to #009096 light, Cobalt Grove is a tetradic progression that holds together at any size. Use it for podcast cover art at sixty pixels square.
redsumifive-stop
#980c28
#b02c3b
#007378
#cf4b54
#009096
The generator opens with #980c28 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.