Petrichor palette
Bitter Estuary
From #715500 ink through #a37b00, #c09732, #cba85a to #e8c476 light, Bitter Estuary is a tetradic progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
amberpetrichorfive-stop
#715500
#a37b00
#c09732
#cba85a
#e8c476
The generator opens with #715500 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.