Blue Hour palette
Dusky Alley
Dark anchor, working middle, light release: #00457a, #006cbb, #2f88d9, #5198dd, #6db4fc form a monochromatic blue hour set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#00457a
#006cbb
#2f88d9
#5198dd
#6db4fc
The generator opens with #00457a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.