If you buy good quality contacts and they match your complexion they won't really look fake; however, you may want to start wearing them over spring break or another long break so that you won't look like your eye color changed overnight. If you want contacts then go for it I'm sure you'll look fine.
I always saw a lot of girls who wear colored contacts which make their eyes look bigger than normal. It is really beautiful. So I always want to get one. However, I have a good vision and eyes are tender tissues which can be easily hurt and infected by bacterial. In my mind, healthy is most important, so I will not wear colored contacts.