Blue Hour palette
Autumn Plaza
Dark anchor, working middle, light release: #004071, #2868a2, #4483bf, #5e92c6, #79aee4 form a tetradic blue hour set with somewhere to stand at every lightness. Made for restaurant branding that works on signage and receipts alike. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#004071
#2868a2
#4483bf
#5e92c6
#79aee4
The generator opens with #004071 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.