Petrichor palette
Restful Mill
From #004749 ink through #007275, #308d90, #529a9c to #6eb6b8 light, Restful Mill is a tetradic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
cyanpetrichorfive-stophigh-contrast
#004749
#007275
#308d90
#529a9c
#6eb6b8
The generator opens with #004749 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.