I really don't think the colour of the bike makes any material difference at all. There are so many other factors that come into play and they are all more important for avoiding collisions. Colour of helmet is statistically the most important visual marker, next comes the lights from the bike, then what the rider is wearing, and above all these things is actually where and how the bike is positioned. Here's a clip demonstrating how a bike becomes moving camouflage for a car waiting to pull out. A gentle weave breaks up the effect allowing the biker to become visible to the car driver. http://www.youtube.com/watch?v=eqQBubilSXU
In many thousands of miles of commuting into, and around some of the most dangerous places in Europe for bike fatalities (Rome, Paris, London, Madrid, Amsterdam) there are very few circumstances where the biker isn't in some way responsible for their demise. We need to take responsibility for being seen and not delegate our survival to unknown third parties, whether that's other drivers, a mistaken belief in luck or karma or some other nonsense. The only statistically common bike accident that I can't envisage avoiding is an animal leaping out from the side of a road into the bike. If it's a deer it's often fatal for both animals. (Deer and homo sapiens). There's always more we can do to increase the chances of survival.
I was thinking about this very post whilst riding home and how sad this accident was. It was 2am in the morning with the temperature just above freezing, a full moon and lots of rabbits camped on the side of the country lane. I've lowered my speed but have this deep sense of unease, I can't explain why. I am in no way a superstitious person but I have to say got a shiver down my spine on seeing my odometer read 6666 miles. A very tentative 10 miles to home, one fox running across the bike and then home to a warm garage and a cool beer. You don't have these kinds of experience driving a four wheeler home, at least I never have.
2012 Ducati 1199 Panigale S, Red with Marchesini wheels, Ohlins and other goodness
2011 S1000RR Sport, Motorsport colours with Akrapovic slip on, running on Continental Sport Attacks
2012 R1200 GS Adventure, Black with all the trimmings