Better to avoid dark colours as they dont show up as good at night, red/white is a much more visible combination.
But surely looking good comes before safety?!
I would agree that buying lighter colours makes you alot more visable at night, personally I would go for all black or wait till you get the bike and buy to match. For visability you could easily keep a hi-viz hardness under the seat and wack that on if riding at night (will do alot more for you than lighter leathers)