This might not be such a good idea when you consider that "black cars are 47 per cent more likely to be involved in road accidents".
Source: http://www.telegraph.co.uk/motoring/news/7845366/Black-cars-...
During daylight hours, black cars were up to 12 per cent more likely be involved in crashes than white vehicles, while at dawn and dusk, the figure rose to 47 per cent.
There is simply not enough information to say how bad black cars based on that article. If they where significantly safer at night then everything in that article could be true even though black cars where safer overall. Also, because they are using the 'worst case numbers' some makes and or models could be safer when panted black etc. Let alone changes in the type of drivers that chose specific colors. Let alone more complex situations ex: Yellow might be the least safe color for a given driver, but if it's only chosen by safety contentious people due to it's reputation it might have the best record.
Edit: I suspect black cars are moderately less safe, but less than a 10% difference overall otherwise they would just give the actual numbers.