As Dark Gizmo said earlier in another thread, Some moron that no one would believe him about his Lavos theory posted that Schala dyed. This is absalut bull shit. This makes contradicts everything that Schala stands for, and for how she would lose it. Schala would not lose her hair colour if it was dyed. She would have to have regrown hair and cut it, or redyed it. Hair dye stains the hair to that colour forever, unless washed.
Now. Schala was a person who hated discrimenation. She would never have dyed her hair to compare herself to the Earthbound ones. It stood against her principles.
Secondly, Game evidence suggests otherwise. We already know Lavos can drain life and DNA. So it should be quite obvious that Lavos most likely drained Schala's life and certain DNA pigments from Schala, there by losing her Blue hair colour and eye colour. I did a part on human biology last term so I'm quite fresh on this issue.
3rdly. Lucca and her mother have pinkish hair. The people in 600 AD who are most likely Lucca's ancestors (the bell maker's wife) also had a weird hair colour, close to pink.
Now, Alot of characters in the game have weird colours, even in Arni. There is nothing to disprove that the hair is natural. And you can't disprove this because there is no evidance of dying. No one ever talks about their hair. And with no game evidance to support hair dying, this rumour is false.
Besides, most people overlook another major aspect on how Zealians dyed their hair, if they did. Only Zeal's line has blue hair... And a female in the palace.. But guess what... By looking closer at the dress, it seems the blue stems from the hat, like a wig... This can also be seen like fur on the mens jackets at the back.
And also, Zeal and her family know that they are even more higher than the Englightened ones and Earthbound ones. If they dyed their hair 1) they would not permit other Earthbound ones to dye them either and 2) Schala wouldn't want to be different.