Natural Iron-Oxide is the basis for this single-pigment color, named after the region in Italy where it was first mined. Raw Sienna retains more of its yellowish color because is created prior to...
Umber is essentially clay, and this variation on the PBr7 pigment is the lighter (un-burnt) version of this classic earth tone that originated in the Umbria region of Italy.
A reddish iron-oxide pigment is the basis for this brown that has a naturally light brown mass-tone that appears more red as it becomes extended in tints and glazes.
