Blue Hour palette
Mustard Fen
From #c75700 ink through #367bdb, #008f92, #e67330 to #00aeb1 light, Mustard Fen is a monochromatic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice.
skybluehourfive-stop
#c75700
#367bdb
#008f92
#e67330
#00aeb1
The generator opens with #c75700 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.