Blue Hour palette
Poppy Dock
Dark anchor, working middle, light release: #004489, #006acf, #2e86ee, #5198f0, #7bb5ff form a tetradic 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 as a text pair.
skybluehourfive-stophigh-contrast
#004489
#006acf
#2e86ee
#5198f0
#7bb5ff
The generator opens with #004489 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.