I am not into black women (physically) does it make me racist?

Well I'm not into black women but only physically they are not my preference I like them as a person they are fun and good friends and all. So I've got a problem like when I was at the bar yesterday with my friends, one of my friends showed me a black woman and I told him like black women are not my preferences and immediately they all looked at me in shock and blamed me for being racist and I felt myself so so bad. I never had bad intentions. by the way I just moved in US and these guys are my new friends. Sorry for my bad English I am practicing on it.
I am not into black women (physically) does it make me racist?
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