Aurora palette
Crimson Square
From #004c2b ink through #007948, #319461, #53a175 to #70be90 light, Crimson Square 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.
greenaurorafive-stophigh-contrast
#004c2b
#007948
#319461
#53a175
#70be90
The generator opens with #004c2b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.