Blue Hour palette
Cornsilk Chapel
From #004c5e ink through #007691, #3191ad, #559fb7 to #71bbd4 light, Cornsilk Chapel is a complementary 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.
cyanbluehourfive-stop
#004c5e
#007691
#3191ad
#559fb7
#71bbd4
The generator opens with #004c5e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.