Petrichor palette
Chalky Bookshop
Chalky Bookshop runs #00696f through #00969f, #3ab2bb, #63c0c7 to #81dde4 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#00696f
#00969f
#3ab2bb
#63c0c7
#81dde4
The generator opens with #00696f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.