Petrichor palette
Maroon Brook
From #9c5849 ink through #795f9a, #637635, #007b8e to #3396aa light, Maroon Brook is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
cyanpetrichorfive-stop
#9c5849
#795f9a
#637635
#007b8e
#3396aa
The generator opens with #9c5849 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.