Acid palette
Marble Inn
Dark anchor, working middle, light release: #90513a, #75558c, #007089, #526f34, #308ba5 form a tetradic acid set with somewhere to stand at every lightness. Made for packaging that photographs well under harsh retail light.
cyanacidfive-stop
#90513a
#75558c
#007089
#526f34
#308ba5
The generator opens with #90513a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.