Have you ever wondered why all passenger aircraft are white? It seems that there are many reasons.
Firstly, the white color is easiest to detect cracks, oil leakage and similar problems that can occur in aircraft. The white color is reflector of light and heat so it is best to prevent the metal of the plane to get warm. The White color is easily recognized in the sky, in the event of an accident, collision or storm. White colors are not paled.
Painting the entire plane is very expensive, and can last from two days to two weeks, depending on the budget that is available. Planes who are not white, are harder sell.