Blue Hour palette
Lichen Delta
A quiet five-stop blue hour arc with a confident middle — #00697e carries the weight and #88ddf5 carries the air, with #1f95b0, #45b1cd and #6abfd7 bridging in monochromatic formation. Built for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#00697e
#1f95b0
#45b1cd
#6abfd7
#88ddf5
The generator opens with #00697e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.