Is it Racist if I only like black guys?

So its come to my attention that be only liking black guys can be partially racist? Like its not that I don't like white guys its just that to me they can be pretty boring so I tend to go for black guys but what I mean by that is like guys that are a few shades darker than me, like for example, guys that their ethnicity is Indian or like Pakistani, that sort of thing, am I being racist or not?
Is it Racist if I only like black guys?
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