Nebula palette
Emerald Foundry
From #006666 ink through #009494, #39b0b0, #62bdbd to #7fdbda light, Emerald Foundry 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.
cyannebulafive-stop
#006666
#009494
#39b0b0
#62bdbd
#7fdbda
The generator opens with #006666 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.