Pink Roots?

I have always heard that healthy roots are white. I had two cut down two male plants today and I saw the roots were pink. I am growing using drip hydroponics and have just switched over to flowering nutes and it does have a pinkish tint to it. The plants all look healthy, just want to know if this is something I need to worry about.

Newp, I wou'dn't be too concerned... I've seen it before.

Here are some pictures of the way the plants looked and the roots themselves.

Ok, Thanks.