Petrichor palette
Lullaby Ridge
From #005660 ink through #008290, #359eac, #5aabb7 to #77c8d4 light, Lullaby Ridge is a split-complementary progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#005660
#008290
#359eac
#5aabb7
#77c8d4
The generator opens with #005660 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.