Ovid recorded that Arachne's father Idmon was a famous dyer of this  color.
Ovid recorded that Arachne's father Idmon was a famous dyer of this  color. A man who lost a body part of this color turned into an osprey and  attacked his daughter who had just turned into an egret. Although this  color is not blue, the Pindaric Odes describe the warriors who fought the  harpies of King Phineus as having wings of this color. Those warriors,  Zetes and Calais, are sons of (*) Boreas, who is said to have this-colored  hair. The Megaran king Nisos had a lock of it. A controversial thesis asserts  that the ancient Greeks did not see the ocean as blue, but rather as this color.  For 10 points, identify this imperial color used in a famous dye from Tyre.
Ovid recorded that Arachne's father Idmon was a famous dyer of this  color.
purple [accept equivalent answers, like violet]