Blue Hour palette
Lavender Mesa
Dark anchor, working middle, light release: #00549d, #187ddd, #3d9afc, #5faaff, #98c7ff 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 for large text.
skybluehourfive-stop
#00549d
#187ddd
#3d9afc
#5faaff
#98c7ff
The generator opens with #00549d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.