Generally, you need to take your complexion and your hair color into consideration. In my opinion, green and brown contact lenses seem as good choices for those people require subtle change. But I insist blue will look great on you. It can bright your eyes, especially when your eyes are a almost black brown color.
Well, go to your optician, he/she may have trial lenses so you can see what they look like. If not, it is wise to have a pair of disposable color lenses, which is not too expensive and can be replaced in two weeks. As for the brand, the doctor will tell you what brand would be best for you. One of my friend wears blue and it is called True Sapphire from 'Fresh Look', she has brown eyes and black hair. Good luck in your research.
