Monochrome palette
Marigold Boulevard
Dark anchor, working middle, light release: #004570, #006dad, #2f88ca, #5298d0, #6eb4ee form a complementary monochrome set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skymonochromefive-stophigh-contrast
#004570
#006dad
#2f88ca
#5298d0
#6eb4ee
The generator opens with #004570 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.