Nebula palette
Teal Square
Five nebula stops with room to breathe — #004f73 grounds, #0079ad and #3295ca do the talking, #57a3d1 softens, #74c0ef lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#004f73
#0079ad
#3295ca
#57a3d1
#74c0ef
The generator opens with #004f73 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.