Petrichor palette
Nightfall Lighthouse
Dark anchor, working middle, light release: #005560, #008191, #349dad, #5aaab8, #76c7d5 form a tetradic petrichor set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#005560
#008191
#349dad
#5aaab8
#76c7d5
The generator opens with #005560 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.