I've been at work today and on looking at it in the daylight I'd be tempted to say it's a really dark green colour with lots of green shimmer and purple shimmer depending on how you look at it in the light.
This has already got a spot on my favourite polishes of 2011 I think, I love it that much, I just wish it'd photograph better as I really struggled to get a decent picture.
|Evening under artificial light|
|Again under artificial light|
|natural light - you can mostly see the green in this and a hint of the purple|
|You can see a little more of the purple in this one|