Tropical palette
Flannel Bookshop
Dark anchor, working middle, light release: #005954, #00867e, #35a299, #5bafa7, #78ccc3 form a tetradic tropical set with somewhere to stand at every lightness. Made for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
cyantropicalfive-stop
#005954
#00867e
#35a299
#5bafa7
#78ccc3
The generator opens with #005954 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.