If not blue, then what?

On the main page for this group some people have commented that having only black and gold to use in party publications is very limiting and so some people support the idea of introducing a new colour. I can understand this, but I would still insist that if we are going to use another colour then it should be one without political meaning. People associate blue with the Tories and I certainly don't want our party associated with them.

So, if you had to choose one other colour to use, what would it be? I think green would be good for poltical reasons as it evokes images of the environment, but that would probably be a visual nightmare.