Aurora palette
Oyster Gallery
Oyster Gallery runs #143b86 through #3d65af, #5680cd, #6c90d2 to #87adf0 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyaurorafive-stophigh-contrast
#143b86
#3d65af
#5680cd
#6c90d2
#87adf0
The generator opens with #143b86 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.