Cool Brown Hair With Red Undertones Ideas. It should look pretty natural and be browner than it is red. The warm undertones of brown, red, and blonde blend together perfectly, creating a beautiful and flattering look.

These shades of brownish red will add depth and dimension to your hair, making it look vibrant and full of life. Needless to say, she's pulling off all three shades. The shade, which is flattering at any length on every skin tone, can be combined with caramel, honey, and deeper shades of brown in the form of highlights, lowlights, or balayage.