Monochrome palette
Opal Estuary
Five stops tuned to sit together without fighting — #00610b ink anchors the set, #84d481 opens it up, and #288e2c, #48aa49, #67b766 cross the middle in a split-complementary arrangement. Opal Estuary suits national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
greenmonochromefive-stop
#00610b
#288e2c
#48aa49
#67b766
#84d481
The generator opens with #00610b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.