Petrichor palette
Sleepy Brook
From #005c6c ink through #00889f, #36a4bb, #5db2c6 to #7acfe3 light, Sleepy Brook is a monochromatic 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
#005c6c
#00889f
#36a4bb
#5db2c6
#7acfe3
The generator opens with #005c6c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.