Ocean palette
Perennial Marsh
From #00455b ink through #006f90, #308aac, #5298b5 to #6eb4d2 light, Perennial Marsh is a tetradic 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.
cyanoceanfive-stophigh-contrast
#00455b
#006f90
#308aac
#5298b5
#6eb4d2
The generator opens with #00455b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.