Petrichor palette
Denim Marsh
From #006776 ink through #0094a8, #39b0c5, #63becf to #80dbed light, Denim Marsh is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#006776
#0094a8
#39b0c5
#63becf
#80dbed
The generator opens with #006776 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.