Blue Hour palette
Flannel Reef
From #00458a ink through #286ebf, #458add, #609ae1 to #7db7ff light, Flannel Reef is a tetradic progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#00458a
#286ebf
#458add
#609ae1
#7db7ff
The generator opens with #00458a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.