Petrichor palette
Calico Pier
Calico Pier runs #004c55 through #007785, #3292a0, #55a0ac to #71bcc8 in five measured steps, the monochromatic 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
#004c55
#007785
#3292a0
#55a0ac
#71bcc8
The generator opens with #004c55 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.