Aurora palette
Cobalt Bookshop
Dark anchor, working middle, light release: #00455b, #006f90, #308aac, #5298b5, #6eb4d2 form a complementary aurora set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#00455b
#006f90
#308aac
#5298b5
#6eb4d2
The generator opens with #00455b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.