Petrichor palette
Plum Library
From #5f4e00 ink through #8d7500, #a99030, #b5a055 to #d1bd71 light, Plum Library is a tetradic 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.
amberpetrichorfive-stop
#5f4e00
#8d7500
#a99030
#b5a055
#d1bd71
The generator opens with #5f4e00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.