Aurora palette
Cobalt Library
Five stops tuned to sit together without fighting — #383b90 ink anchors the set, #a2aefc opens it up, and #5d65ba, #7680d8, #8792dd cross the middle in a tetradic arrangement. Cobalt Library suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skyaurorafive-stophigh-contrast
#383b90
#5d65ba
#7680d8
#8792dd
#a2aefc
The generator opens with #383b90 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.