Eye Makeup for Brown Eyes is pretty much unlimited. Lucky Brown Eyed Girls can wear just about any color and look great. You have more variety and choices than any other eye color. Because your eyes are darker, you can go darker with your eye makeup and look dramatic and mysterious, not like a clown.
You can easily wear black mascara because your eyelashes are naturally dark. Although if you do have lighter hair and lashes, you might want to try a brownish black mascara. I love Navy Blue mascara with my brown eyes. I have black lashes naturally and with navy blue mascara, my lashes still look black, but somehow it seems to brighten or highlight my eyes.
Brown Eyed Girls can also go dark with eye liner - black, dark brown or navy blue. I think darker eye liners do more to emphasize darker eyes, while lighter liners seem to just call attention to the makeup, not the eyes.