Black, for 110 volt, but don't count on everyone doing it right. For 220 there are two hot wires, usually black and red, but blue might be run in metal conduits.
Benjamin Banneker's first favorite color is blue and his second favorite color is black.
it is native blue ( navy blue)
black and blue
white
red means the bravery of the soldiers that died white means honesty and peace blue means loyalty, justice
Blue, black, and white.
black and blue
Black and white!
The dress was confirmed to be blue and black
a muggy muddy color
blue answer Kia forte comes in black, blue. white and red color
White or black
white or black
White, Blue, and Black.
It is black and white
Blue and Green
if your white a redish color if your black a light brownish color