Can the real Christian Louboutin please stand up?

It’s no doubt the “Red Sole” has become synonymous with Paris based designer Christian Louboutin and it seems like other designers want part of the action.

The Paris based designer has sued fashion rival Yves Saint Laurent, claiming that the company has been selling a shoe from their spring 2011 collection that looks too similar to their own.

Now the question is can they really sue another designer for the color of their shoe sole? The brand claims they were the first to develop the idea of having red soles on women shoes and don’t want their customers to get confused with the YSL shoe.

It doesn’t seem fair a brand can sue over a color just because they have made it popular. What do you guys think? Is it fair to sue?