Aurora palette
Willow Cove
Five aurora stops with room to breathe — #004f99 grounds, #3879c5 and #5495e3 do the talking, #6ea5e8 softens, #90c2ff lifts. The analogous bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyaurorafive-stop
#004f99
#3879c5
#5495e3
#6ea5e8
#90c2ff
The generator opens with #004f99 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.