Tiffany and Co blue coloured nail polish?

I heard For Audrey is actually not a dead on match because Tiffany&co has patented the color... It is very close though, I also saw somewhere L'Oreal makes a color that's a close match!
I also found a blog post that might be helpful:
http://polishhoarderdisorder.blogspot.nl/2010/06/closure-finally.html?m=1

I've seen online posted all over that their color is patented so I guess I shouldn't say it's a dead on match. I guess what I meant to say is it's the closest to their blue as anything I've seen or used.