it depends on the vehicle.
i have owned blues,greys,red,sea green,tan,whites,light yellow,burgundy.
burgundy is my least favorite,actually i actively dislike it.white is next,but having said that 2 of my current trucks are burgundy and 1 suv is white and friday i go to look at a white 86 ltd.lol.my wifes is suv is the champagne/tan-light bronze that is popular.don't like that one either.
but those were the colors on the used vehicles i found that met my other requirements.