Blue Hour palette
Birch Atelier
A quiet five-stop blue hour arc with a confident middle — #006399 carries the weight and #9fd4ff carries the air, with #268dd0, #48a9ee and #6bb9f4 bridging in analogous formation. Built for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#006399
#268dd0
#48a9ee
#6bb9f4
#9fd4ff
The generator opens with #006399 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.