Dark Brown (#2) Hair Extensions: Dark Brown color is a rich espresso brown shade offered in our hair extensions. This shade has a subtle hint of warm red undertone. The dark brown hair color is one of the hottest hair colors for brunettes and is generally suitable for all skin tones. The quality of our hair extensions will make you forget that it’s not your own hair. Buy quality dark brown hair extensions at low prices on Canada Hair: your #1 destination for hair extensions!