Aurora palette
Crimson Bazaar
Dark anchor, working middle, light release: #00445b, #006d90, #2f88ac, #5196b5, #6db2d2 form a complementary aurora 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.
cyanaurorafive-stophigh-contrast
#00445b
#006d90
#2f88ac
#5196b5
#6db2d2
The generator opens with #00445b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.