Daylight palette
Flannel Square
From #005f66 ink through #008c96, #37a8b2, #5fb5be to #7cd2db light, Flannel Square 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.
cyandaylightfive-stop
#005f66
#008c96
#37a8b2
#5fb5be
#7cd2db
The generator opens with #005f66 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.