* Red Hair: Is primarily red, ranging from bright copper to deep crimson. It's the purest form of red hair.
* Auburn Hair: Is a mix of red and brown hues. It leans more towards a brownish-red or reddish-brown color. It often has undertones of red, copper, and gold but is not as intensely red as true red hair.
Think of it this way:
* Red is like pure strawberry jam.
* Auburn is like strawberry jam mixed with chocolate sauce. It still has the strawberry (red) element, but it's tempered with brown.
So, while both are beautiful reddish shades, auburn has a brown base while red is primarily, well, red!