Aurora palette
Soft Clearing
Five aurora stops with room to breathe — #00464c grounds, #00717a and #308c95 do the talking, #5299a1 softens, #6eb5bd lifts. The tetradic bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#00464c
#00717a
#308c95
#5299a1
#6eb5bd
The generator opens with #00464c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.