Eh, I personally do not care what other people think so as long as I like the color.
Something I usually tell myself, is that at the end of the day, they are just "colors," and only grew to be associated with a certain gender through culture, and is therefore highly subjective.
So yea my advice, if you like it, forget the haters!
Answering your question though, I've shown multiple friends, classmates and family members the cyan lumia and how I want it very bad, and I never got any comments on it looking feminine.