Saturation

Saturation is the vividness or depth of a color. The less gray a color contains, the more saturated it is. 100% saturation is a pure color; 0% saturation is a shade of gray.

If the colors in your photo appear neon, then it is oversaturated; if they appear pastel, then they are de-saturated. The before image below is desaturated: the colors appear washed out.

Low Saturation

 

Good Saturation

Image   Image

Low Saturation

 

Good Saturation

Image   Image