Tropical palette
Plum Mill
Dark anchor, working middle, light release: #006563, #00938f, #39afab, #61bcb8, #7fdad5 form a complementary tropical set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyantropicalfive-stop
#006563
#00938f
#39afab
#61bcb8
#7fdad5
The generator opens with #006563 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.