Are phal leaves supposed to be purple?

[KrissieLynn]

I (finally) have a new leaf growing on one of my Lowe's rescues, but its coming up purple... Is the purple leaf normal?

This is what I can tell you about it:
1) It sits about a foot-foot and a half from a window facing NE-E.
2) The flowers are a purple/magenta.
3) The older leaves are a dark green/purple mix.
4) The rest of my collection is in the same window at varying distances from it- some dead even with it. They all have green leaves- kind of a mossy emerald green.
5) The new leaf is pure aubergine -like Hallmark Cards' purple.

Any help/answer is MUCH appreciated!!