Aurora palette
Moonlit Library
Dark anchor, working middle, light release: #005270, #007da7, #3399c4, #59a7cc, #75c4ea form a analogous 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 for large text.
cyanaurorafive-stop
#005270
#007da7
#3399c4
#59a7cc
#75c4ea
The generator opens with #005270 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.