Petrichor palette
Rustic Bluff
Five petrichor stops with room to breathe — #00616d grounds, #96544b and #007785 do the talking, #b36e64 softens, #3292a0 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size.
cyanpetrichorfive-stop
#00616d
#96544b
#007785
#b36e64
#3292a0
The generator opens with #00616d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.