Petrichor palette
Opal Boulevard
From #6a4900 ink through #9c6e0b, #b88934, #c39a57 to #e0b773 light, Opal Boulevard is a tetradic progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
orangepetrichorfive-stop
#6a4900
#9c6e0b
#b88934
#c39a57
#e0b773
The generator opens with #6a4900 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.