Petrichor palette
Blushing Marsh
From #004c57 ink through #007787, #3292a3, #55a0ae to #71bcca light, Blushing Marsh 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 for large text.
cyanpetrichorfive-stop
#004c57
#007787
#3292a3
#55a0ae
#71bcca
The generator opens with #004c57 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.