Tropical palette
Marigold Depot
From #006e69 ink through #009c96, #3bb8b2, #65c6bf to #83e3dd light, Marigold Depot is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyantropicalfive-stop
#006e69
#009c96
#3bb8b2
#65c6bf
#83e3dd
The generator opens with #006e69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.