What is the color of mirror?

The reason why mirror reflects all of the light beams in the same angle as light beams hit mirror surface is because mirrors are perfectly flat. And because all light reflects from mirror maintaining it's original angle, image is perfectly reflected and reconstructed. 
All objects absorbs all light waves that hits it, except the lightwaves with color into which an object is itself. For example EU flag will absorb green, red, pink, orange, etc., but will reflect blue light waves. One exception needs to be mentioned here. There is no corresponging lightwave for black color and white color. Human eye indicates that object is white, if object reflects (or emits) all possible visible light waves. And in contrast black is indicated if there is no lightwaves.
Mirrors are manufactured out of aluminium. Aluminiums is used because of it's suitable physical properties, and because it is almost white. Yes, aluminium is not perfect. It would be more better if aluminum was white. If you look carefully in the picture above you will see that the light that is reflected from mirror is a little bit bluish. And that is true for all mirrors.
Conclusion! The mirror is made of aluminium, and thus the color of mirror is the same as color of aluminium.

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