Blue Hour palette
Halcyon Moor
Five blue hour stops with room to breathe — #00445c grounds, #006d92 and #2f88ae do the talking, #5196b7 softens, #6db2d4 lifts. The split-complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanbluehourfive-stophigh-contrast
#00445c
#006d92
#2f88ae
#5196b7
#6db2d4
The generator opens with #00445c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.