Aurora palette
Crackling Square
Dark anchor, working middle, light release: #303298, #535ec2, #6b7ae0, #7d8ce4, #99a9ff form a analogous aurora set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
blueaurorafive-stophigh-contrast
#303298
#535ec2
#6b7ae0
#7d8ce4
#99a9ff
The generator opens with #303298 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.