Petrichor palette
Toasted Cellar
Five petrichor stops with room to breathe — #00616b grounds, #96544d and #007783 do the talking, #b36e66 softens, #32929e lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size.
cyanpetrichorfive-stop
#00616b
#96544d
#007783
#b36e66
#32929e
The generator opens with #00616b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.