If the audience is paying don't they deserve some consideration from the dancer on what their perception might be? Dancing in black at a wedding, or in red on the first day of the month (made up examples) might be inappropriate. It can't just be about "I look good in green" or "my favourite colour is pink" and then you dress accordingly and to hell with anyone else.
I feel that performance is about entertainment and inspiration. That needs to incorporate what the audience needs, or might expect. It needn't be about actually giving them what they want (after all, it is always good to push boundaries and educate as well), and if you are dancing for free then those considerations are less (depending on what you are wanting to achieve) and you can concentrate more on pushing your own boundaries. But without some awareness of the audience at all, then you might as well turn your back and dance behind closed curtains with the lights off.
Thats my personal opinion. I'm not expecting anyone else to share it, or agree with it. I'm happy to argue about it, or be educated otherwise, but it is largely why I wondered if colour played any part in the dance cultures, and in the perception of audiences.