why the sky is blue?
The sky is blue because of the way that sunlight interacts with the Earth's atmosphere. Sunlight has many colors, but blue light has a shorter wavelength than other colors, so it is scattered more by the gases in the atmosphere. This scattering makes the sky appear blue to us.
But, if it is scattered why is it the color our eyes catch the most ? 
It doesn't make sense to me, please explain me why.