Petrichor palette
Fennel Library
Dark anchor, working middle, light release: #006c78, #a35c53, #008290, #c1776d, #359eac form a tetradic petrichor set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
cyanpetrichorfive-stop
#006c78
#a35c53
#008290
#c1776d
#359eac
The generator opens with #006c78 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.