Indeed magic has no color. Many people get quite upset or argumentative when that topic is brought about. Dark, light, good, evil, those are often subjective terms. What you feel is dark or harmful could be beneficial to someone else. Its all energy and what we do with that energy.
Kartos is right about balance. It is a very important thing to those who are serious about the craft, and in more than one way. Balance is often sought after by some for a life time.
If your looking to learn a traditional path, might I suggest not labeling it like that but using its real name. You will find many people willing to help answer questions and guide you where they can but remember that you and your experiences are you best learning aids.