First of all, the statement that magic has its colors is wrong. Magic has no color. It it was it is, if the magic practitioner uses this for good reasons and he harms none the magic will still be magic, and if he would use this to harm someone it is still the same magic but the practitioner is the one who has done it for a bad reason, it does not give the magic a specific color.
Magic is energy manipulation so you can not give energy manipulation any color.There is a comparison of a knife to magic - if you use a knife to cut vegetables you harm no one, but you can also use the knife to kill someone, but the knife will not change- it is still a knife which is used by a person - and so magic is. It is what it is. I do not use this comparison though, i don't really like it but it kinda explains people about the fact that magic has no color, especially to people who were mislead about it.
you can see this video, it explains something about magic colors : http://www.youtube.com/watch?v=bw4rgtNMtoQ
And now, to the subject. Cabala does not offer spells to nay magic practitioners. It does not!
Let me introduce you a little to cabala : Cabala is an aspect of Jewish mysticism. It consists of a large body of speculation on the nature of divinity, the creation, the origin and fate of the soul, and the role of human beings. It consists also of meditative, devotional, mystical and magical practices.
You can study cabala. Yes, of course you can, you can check out theories and see what it offers.
So, you can not really use any spell they offer. Cabala does not have spells. But it has its ceremonies. Your friend was probably lying to you or misleading you about another thing.
There areceremonies that are used to harm which can be offered by cabala, but you or any other magic practitioners can not use this, it needs the right person to use this. They are used only when it comes to a horrible situation, and there are probably not alot of people who do this.
Perhaps you did not understand who can do this, and what theceremonies are so let me tell you a bit about a ritual i know which is cabalistic.
It is called Pulsa DiNura.
"is a purportedly cabalistic ceremony in which the angels of destruction are invoked to block heavenly forgiveness of the subjects sins, causing all the curses named in the Bible to befall him resulting in his death. However, the Torah prohibits to pray that something bad should happen to another Jew. Rather it offers the solution to pray that the bad in the person dies and he becomes a righteous person. The source for this modern ritual is not to be found in Cabala, but among the Hebrew magical manuals of antiquity, such as Sefer ha-Razim and Harba de-Moshe." - From Wikipedia.
You will not be able to do this thing, so do i. I am into cabala for over 15 years and i do not have the permission to use any of those things.
The pulsa DiNura i told you about id done by Rabbis, or Mekubalim which are people who have the permission to do this, and they are the only people who can. The word mekubalim comes from the wordcabala, and they are the only people who can do it. There are not alot of people like them.
This ceremony is done by 10 Mekubalim only, and you can see youtube videos about it.
But the point is that it can not be used by you. You could always lean and be introduced to cabala though ;)
I tried to inform you as well as i could about this, i am sorry if it disappointed you or anyone else.