Aurora palette
Parchment Harbor
Five aurora stops with room to breathe — #28378c grounds, #4c61b6 and #657cd4 do the talking, #778dd9 softens, #92a9f7 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyaurorafive-stophigh-contrast
#28378c
#4c61b6
#657cd4
#778dd9
#92a9f7
The generator opens with #28378c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.