Surf palette
Cypress Library
Cypress Library runs #004a51 through #007580, #31909b, #549ea7 to #70bac3 in five measured steps, the monochromatic structure keeping every neighbor honest. Reach for it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyansurffive-stophigh-contrast
#004a51
#007580
#31909b
#549ea7
#70bac3
The generator opens with #004a51 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.