Tropical palette
Nightfall Plaza
Dark anchor, working middle, light release: #007f92, #3e8155, #008376, #5a9d6f, #349f91 form a tetradic tropical set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
tealtropicalfive-stop
#007f92
#3e8155
#008376
#5a9d6f
#349f91
The generator opens with #007f92 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.