Aurora palette
Thistled Brook
Five aurora stops with room to breathe — #40669e grounds, #007092 and #007577 do the talking, #308bae softens, #119295 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size.
cyanaurorafive-stop
#40669e
#007092
#007577
#308bae
#119295
The generator opens with #40669e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.