Disco palette
Indigo Heath
Five disco stops with room to breathe — #0052a7 grounds, #1b7ae8 and #4898ff do the talking, #68a9ff softens, #9dc7ff 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.
skydiscofive-stop
#0052a7
#1b7ae8
#4898ff
#68a9ff
#9dc7ff
The generator opens with #0052a7 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.