Blue Hour palette
Velvet Crossing
Five blue hour stops with room to breathe — #00467e grounds, #006dbf and #2f89dd do the talking, #5299e1 softens, #6fb6ff 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.
skybluehourfive-stophigh-contrast
#00467e
#006dbf
#2f89dd
#5299e1
#6fb6ff
The generator opens with #00467e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.