Nebula palette
Harbor Square
Five stops tuned to sit together without fighting — #007669 ink anchors the set, #87ecdc opens it up, and #00a594, #3dc2b0, #69cfbf cross the middle in a triadic arrangement. Harbor Square suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
tealnebulafive-stop
#007669
#00a594
#3dc2b0
#69cfbf
#87ecdc
The generator opens with #007669 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.