Red contacts are actually one of the better colored contacts for people with darker eyes, such as brown or even dark brown.
Most people with dark eyes who have tried coloring their eyes before with contacts have experienced difficulty in getting a color that works well for them, especially if they were trying with natural colors such as green or blue.
Those colors are usually just tinted and do not work well enough for darker eyes.
The beauty of using red to color your dark eyes is that most red contacts you will find are going to be theatrical and should work great because they color your entire eye with a solid color, and do not rely on your natural eye color to determine what color your eyes turn out to be.
When you have dark eyes you should typically stay away from tinted colored colors because they just won’t do enough to your darker colored eyes.
If you find some red tinted contacts, they will not work as well as these costume red contacts.