Aurora palette
Lupine Marsh
Dark anchor, working middle, light release: #004578, #006cb8, #2f88d6, #5197db, #6db4f9 form a monochromatic 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 for large text.
skyaurorafive-stop
#004578
#006cb8
#2f88d6
#5197db
#6db4f9
The generator opens with #004578 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.