That would depend on your own opinion. Very dark or very light colors tend to show dirt more. Just in case you care. Black seems to "attract" dirt.
Colors that shows dirt the least are.. 1. Silver 2. White 3. tan/gold Black shows it the most.
black
The best car polish is this product called nupolish. It is easily applied to a clean car and will be a good repellant to dirt and mud. One application will last months.
Paint your car what best describes your personality
Joe Dirt Car was created in 1995.
dirt
WhiteBlackSilverRedGreyBlueBeige/BrownGreenYellow/GoldOther
Red, white, or gold.
Any light color especially white.
Purple is the best answer.
You can hide a camera in a car behind the license plate.