Nautical palette
Vale Mill
From #004b59 ink through #00768a, #3191a6, #559fb0 to #71bbcd light, Vale Mill 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.
cyannauticalfive-stophigh-contrast
#004b59
#00768a
#3191a6
#559fb0
#71bbcd
The generator opens with #004b59 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.