The color pigments in the iris provide a brightness in your eyes and these will help your eyes to look brighter and larger in case you will choose the right hair color which will be compatible with them. This is why in the event that you have cold colored eye color such as blue and light green then you have to pay attention to have cold colors in the sub-shades of your hair color. Well, what are these hair colors? Blonde, light brown and red shades can be quite compatible with your eyes. In case you have hazel or brown eye color which are known as the warm colors then you can prefer the dark chestnut, caramel, and dark chocolate hair colors. These colors will put your eyes to the fore.