Pitch Black because all eclipses happen in the middle of the night because you can always see them.
the color of mars is orange.
It is mostly due to the pollutants in the atmosphere, in areas with little pollution the sunset is typically only orange and yellow.
the sky in the day's are usually Blue. if its any other color its usually not natural, for the sky to be green, white, or brown. yes it could be yellow, orange, purple, or pink because of a sunset.