Blue Hour palette
Cumin Canyon
From #00568f ink through #007fcf, #349bed, #5babf2 to #8bc7ff light, Cumin Canyon is a analogous 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
#00568f
#007fcf
#349bed
#5babf2
#8bc7ff
The generator opens with #00568f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.