Acid palette
Perennial Library
From #004652 ink through #007083, #308b9e, #5299a9 to #6eb5c6 light, Perennial Library is a triadic progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyanacidfive-stophigh-contrast
#004652
#007083
#308b9e
#5299a9
#6eb5c6
The generator opens with #004652 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.