Aurora palette
Crocus Prairie
Dark anchor, working middle, light release: #3f38a5, #6365cf, #7c81ee, #8d94f1, #abb3ff form a tetradic aurora set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
blueaurorafive-stophigh-contrast
#3f38a5
#6365cf
#7c81ee
#8d94f1
#abb3ff
The generator opens with #3f38a5 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.