Analysis of information sources in references of the Wikipedia article "Blue hair" in English language version.
Even in the case of Egyptian art, one reads of statues of human figures with blue hair, and in the case of early Greek art, the inappropriate Use of one color, blue appears to have been very common. ...
Some hair is of a strange blue tint, unreal ...
The blue rinse hairstyle became popular in Britain in the 1930s, but grew to its peak after the war. The rinse was a dilute hair dye designed to reduce the appearance of greying hair. ...
It was actually Marge Simpson. But the blue hair is really more of a tribute to Superman than to Marge, as much as I do love Marge. Superman/Clark Kent's hair was always black with a blue sheen to it.