Petrichor palette
Tawny Gazebo
From #004a4e ink through #00757b, #319096, #549da2 to #70babe light, Tawny Gazebo is a split-complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanpetrichorfive-stophigh-contrast
#004a4e
#00757b
#319096
#549da2
#70babe
The generator opens with #004a4e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.