Acid palette
Mustard Beacon
Dark anchor, working middle, light release: #004840, #007467, #308f81, #529c90, #6fb8ab form a split-complementary acid set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
tealacidfive-stophigh-contrast
#004840
#007467
#308f81
#529c90
#6fb8ab
The generator opens with #004840 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.