Can you Trademark a Color?

This question came before a NY judge a couple weeks ago.  Shapes can be trademarked - the Coca-Cola bottle shape, for example, is trademarked.  We also know that you can trademark certain color combinations - for example, the combination of yellow, red and black that Kodak uses is trademarked by Kodak.

What about a single color though?  Many of you (perhaps mostly the females and a few aware gentlemen) know that all Christian Louboutin shoes have a familiar red sole. I think that many of us would quickly yell "Louboutin!!" if we were shown a glimpse of a shoe and it had a red sole.  Is that trademarkable?  (Is that even a word?  It should be).

Read about the issue and weigh in.