Petrichor palette
Granite Harbor
Five stops tuned to sit together without fighting — #005254 ink anchors the set, #74c3c5 opens it up, and #007e81, #33999c, #58a7a9 cross the middle in a tetradic arrangement. Granite Harbor suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#005254
#007e81
#33999c
#58a7a9
#74c3c5
The generator opens with #005254 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.