Blue Hour palette
Nightfall Parlor
Dark anchor, working middle, light release: #004e75, #0077b0, #3293cd, #56a1d4, #73bef2 form a analogous 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
#004e75
#0077b0
#3293cd
#56a1d4
#73bef2
The generator opens with #004e75 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.