Aurora palette
Brumal Porch
Dark anchor, working middle, light release: #3f3e9c, #6469c6, #7d84e4, #8e97e9, #abb4ff form a tetradic aurora set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
blueaurorafive-stop
#3f3e9c
#6469c6
#7d84e4
#8e97e9
#abb4ff
The generator opens with #3f3e9c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.