Neon palette
Marble Lane
From #193f8d ink through #4169b7, #5a84d5, #7095da to #8bb1f8 light, Marble Lane is a complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyneonfive-stophigh-contrast
#193f8d
#4169b7
#5a84d5
#7095da
#8bb1f8
The generator opens with #193f8d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.