Aurora palette
Polar Courtyard
Dark anchor, working middle, light release: #2e2e98, #505bc2, #6877e0, #7a89e4, #95a6ff form a triadic 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.
skyaurorafive-stophigh-contrast
#2e2e98
#505bc2
#6877e0
#7a89e4
#95a6ff
The generator opens with #2e2e98 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.