Tropical palette
Halcyon Bookshop
From #446f00 ink through #629d00, #7dba35, #93c75e to #afe57b light, Halcyon Bookshop is a triadic progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
chartreusetropicalfive-stop
#446f00
#629d00
#7dba35
#93c75e
#afe57b
The generator opens with #446f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.