Petrichor palette
Starlit Cellar
Dark anchor, working middle, light release: #005a61, #008691, #36a2ad, #5cafb8, #79ccd5 form a tetradic petrichor set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#005a61
#008691
#36a2ad
#5cafb8
#79ccd5
The generator opens with #005a61 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.