Your question sounds strange! God give everybody the own eyes colors. So you have no choice inborn. But I can tell you that, even the Asian people, their eyes color will change follow the years; the aged people's eyes will be lighter than the younger people. You may get dark eyes when you are young, but it will turn to be brown when you grow old. It is naturally! There is another way for you to change it immediately, you can wearing a contact lenses. You can find any color you like but its not the naturally way. Please cherish your own eyes, because it is a gift from God and inherited from your dear parents.