Ocean palette
Indigo Atelier
From #005769 ink through #00839c, #359fb8, #5bacc2 to #78c9e0 light, Indigo Atelier is a split-complementary 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 for large text.
cyanoceanfive-stop
#005769
#00839c
#359fb8
#5bacc2
#78c9e0
The generator opens with #005769 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.