Neon palette
Glassy Archive
Five neon stops with room to breathe — #2f3d7e grounds, #5466a7 and #6d81c4 do the talking, #7f91cb softens, #9aade9 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.
skyneonfive-stophigh-contrast
#2f3d7e
#5466a7
#6d81c4
#7f91cb
#9aade9
The generator opens with #2f3d7e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.