Disco palette
Stormy Library
Five disco stops with room to breathe — #2a3f80 grounds, #5068a9 and #6983c6 do the talking, #7c93cd softens, #97afeb lifts. The analogous bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skydiscofive-stophigh-contrast
#2a3f80
#5068a9
#6983c6
#7c93cd
#97afeb
The generator opens with #2a3f80 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.