Blue Hour palette
Faded Hollow
Dark anchor, working middle, light release: #005769, #00839c, #359fb8, #5bacc2, #78c9e0 form a tetradic 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.
cyanbluehourfive-stop
#005769
#00839c
#359fb8
#5bacc2
#78c9e0
The generator opens with #005769 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.