Neon palette
Nectar Junction
From #004d4d ink through #007979, #329494, #55a1a1 to #72bebd light, Nectar Junction is a tetradic 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.
cyanneonfive-stophigh-contrast
#004d4d
#007979
#329494
#55a1a1
#72bebd
The generator opens with #004d4d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.