Ocean palette
Maritime Moor
From #004756 ink through #007188, #308ca4, #529aae to #6eb6cb light, Maritime Moor is a analogous 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
#004756
#007188
#308ca4
#529aae
#6eb6cb
The generator opens with #004756 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.