Colour has no influence. The symbol (fundamentally, worth of auto) has a large affect on the comp & collision. Theft costs, statistically, on various kinds of cars, also has an impact on comp & collision. Safety equipment (ABS brakes, passive alarm, VIN etching …) will decrease the liability portion. If an insurance company does statistics on automobiles and displays that red automobiles are far more very likely to drive dangerously (almost certainly certain to particular models), it is inside of their rights to increase the premium accordingly.
Almost everything is statistics every insurance business usues a diverse calculation. All liability-only vehicles will be the exact same at some firms and distinct at other individuals.