Frost palette
Yonder Dune
Five frost stops with room to breathe — #004b2a grounds, #007846 and #31935f do the talking, #53a073 softens, #6fbc8e lifts. The tetradic bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
greenfrostfive-stophigh-contrast
#004b2a
#007846
#31935f
#53a073
#6fbc8e
The generator opens with #004b2a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.