Petrichor palette
Oyster Lane
From #005a6b ink through #00869e, #36a2ba, #5cb0c5 to #79cce2 light, Oyster Lane 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
#005a6b
#00869e
#36a2ba
#5cb0c5
#79cce2
The generator opens with #005a6b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.