Blue Hour palette
Coral Fen
Five stops tuned to sit together without fighting — #00679f ink anchors the set, #4298d6 opens it up, and #a7630e, #207cb8, #c57e34 cross the middle in a tetradic arrangement. Coral Fen suits book covers that read at thumbnail size.
orangebluehourfive-stop
#00679f
#a7630e
#207cb8
#c57e34
#4298d6
The generator opens with #00679f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.