First of all, as a tip. I wouldn't define magick as a color. Be that color blue,grey,black,white,ect. I would view things as intentions rather than a color. Colors have mutlitudes of meanings and associations.
Second, I would try to get ahold of some reputable books, and read up on some decent articles. Starting maybe with this site, and using a search engine to assist you. Google is great.
Don't forget to ask questions!