Blue Hour palette
Drowsy Square
Five blue hour stops with room to breathe — #006484 grounds, #2f8fb4 and #4fabd1 do the talking, #6fb9da softens, #8cd7f8 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#006484
#2f8fb4
#4fabd1
#6fb9da
#8cd7f8
The generator opens with #006484 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.