Petrichor palette
Marigold Fen
Five petrichor stops with room to breathe — #006470 grounds, #0091a1 and #38adbd do the talking, #61bbc8 softens, #7fd8e6 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#006470
#0091a1
#38adbd
#61bbc8
#7fd8e6
The generator opens with #006470 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.