Blue Hour palette
Wisteria Caravan
Dark anchor, working middle, light release: #004177, #2369ac, #4084c9, #5c94cf, #77b0ed 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
#004177
#2369ac
#4084c9
#5c94cf
#77b0ed
The generator opens with #004177 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.