other

Prussian blue

Synthetic iron-based blue pigment first produced in the early 18th century, which makes it a firm earliest-possible date for any paint layer containing it.

Known aliases

Berlin blue

Relationships

No evidence-backed relationships are recorded.

Current clusters

science2 publishers

Uppsala's laser analysis finds an 18th-century blue in two patches of the 'L daVinci' Domitian

Twelve of the thirteen pigments in the Domitian portrait were available to Leonardo and Titian. The thirteenth is Prussian blue, first produced in the early 1700s, and it sits in the laurel wreath and in a jewel on the sword hilt.

Publishers:discovermagazine.comphys.org

Reality

Evidence74
Adoption: Insufficient
Hype gap+25
Incentives58
Confidence70