Petrichor palette
Smoky Bookshop
Five petrichor stops with room to breathe — #00636d grounds, #00909e and #38acba do the talking, #61bac6 softens, #7ed7e3 lifts. The analogous bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#00636d
#00909e
#38acba
#61bac6
#7ed7e3
The generator opens with #00636d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.