Blue Hour palette
Midnight Cove
From #0054a3 ink through #0f7ce7, #429aff, #65abff to #9cc8ff light, Midnight Cove is a monochromatic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skybluehourfive-stop
#0054a3
#0f7ce7
#429aff
#65abff
#9cc8ff
The generator opens with #0054a3 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.