Blue Hour palette
Oyster Fen
Five blue hour stops with room to breathe — #78310f grounds, #a35b3d and #c07657 do the talking, #ca896e softens, #e8a58a lifts. The analogous bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
orangebluehourfive-stophigh-contrast
#78310f
#a35b3d
#c07657
#ca896e
#e8a58a
The generator opens with #78310f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.