Petrichor palette
Mustard Cottage
Five petrichor stops with room to breathe — #006f73 grounds, #009da3 and #3bb9bf do the talking, #66c7cc softens, #84e4e9 lifts. The split-complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#006f73
#009da3
#3bb9bf
#66c7cc
#84e4e9
The generator opens with #006f73 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.