Blue Hour palette
Bracken Dune
Five blue hour stops with room to breathe — #00487e grounds, #0070bf and #308cdd do the talking, #539ce1 softens, #71b8ff lifts. The complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#00487e
#0070bf
#308cdd
#539ce1
#71b8ff
The generator opens with #00487e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.