Petrichor palette
Ashen Brook
Five stops tuned to sit together without fighting — #00595d ink anchors the set, #78cbd0 opens it up, and #00858b, #35a1a7, #5baeb3 cross the middle in a monochromatic arrangement. Ashen Brook suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#00595d
#00858b
#35a1a7
#5baeb3
#78cbd0
The generator opens with #00595d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.