Blue Hour palette
Atlas Prairie
Dark anchor, working middle, light release: #005771, #0082a7, #359ec4, #5baccd, #78c9ea form a complementary blue hour set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#005771
#0082a7
#359ec4
#5baccd
#78c9ea
The generator opens with #005771 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.