Monochrome palette
Distant Cottage
From #004763 ink through #00709a, #308bb7, #5299bf to #6fb6dc light, Distant Cottage 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 as a text pair.
skymonochromefive-stophigh-contrast
#004763
#00709a
#308bb7
#5299bf
#6fb6dc
The generator opens with #004763 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.