Blue Hour palette
Ember Brook
A quiet five-stop blue hour arc with a confident middle — #00447c carries the weight and #7db3ee carries the air, with #2c6cac, #4887c9 and #6297d0 bridging in split-complementary formation. Built for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#00447c
#2c6cac
#4887c9
#6297d0
#7db3ee
The generator opens with #00447c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.