Their take was that vibrant coloured cars may end up paying higher premium as they are more susceptible to accidents. For insurers' better visible colours like silver are less risky and may carry lesser premium. The article cited Rahul Agarwal of Optima Insurance Brokers as saying that "insurers who have conclusive data on the colour factor may tweak their premiums to charge more or less."
If this works out then one may have to think before buying that red fast number to zip through the city.
Irrespective of what wheels you own, remember drive safely. For someone waiting at home for you. For yourself.