Blue Hour palette
Porcelain Fjord
Dark anchor, working middle, light release: #004f6b, #0079a2, #3294bf, #57a3c7, #73bfe5 form a split-complementary 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
#004f6b
#0079a2
#3294bf
#57a3c7
#73bfe5
The generator opens with #004f6b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.