https://www.atlasobscura.com/articles/ancient-sculpture-color-polychromyAtlas Obscura wrote:Rediscovering the Blazingly Bright Colors of Ancient Sculptures
In 1811, a group of English and German scholars happened upon the Aphaia Temple, on the Aegina Island, in Greece. The temple dated from around 500 BC, and despite the centuries that had passed, at the time the site still held the remains of marble sculptures from the temple’s east and west pediments. These figures depicted scenes of the Trojan wars, and although weathered and partly broken, they also contained an intriguing detail: visible signs of red and blue paint.
In 2006, the German archaeologists Vinzenz Brinkmann and Ulrike Koch-Brinkmann examined one of these figures more closely, using raking light and ultra-violet photography. What they found was that the Aphaia’s Trojan archer, crouched low, bow taut and barefoot, was actually once painted in an array of colors, from his cap to his feet. Patterns of diamonds, animals, and zigzags adorned his clothes. In his painted hands—believed to be a mixture of rose madder and red ochre—he held a golden bow. (The original sculptures are still on display at the Glyptothek Museum in Munich; as with the Parthenon before it, artifacts from the Aphaia Temple were plundered and sold).
For some technical and historical details & interactive documents: http://buntegoetter.liebieghaus.de/en