Aurora palette
Calico Plaza
Five stops tuned to sit together without fighting — #004855 ink anchors the set, #6fb7c9 opens it up, and #007286, #308da2, #539bac cross the middle in a tetradic arrangement. Calico Plaza suits book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#004855
#007286
#308da2
#539bac
#6fb7c9
The generator opens with #004855 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.