Color sense of dogs

Dog's view of colors

Do dogs see the world as we see?

    The answer is 'no'.

    Yeah , dogs can't see all the colors as we see.. Because they are having only two color sensing cones in their eye while humans having three cones which are stands for red, green, blue.

What colors can dogs understand?  

Usually dogs can see colors with different saturations than we do. They have two color sensing cones which are stands for blue and yellow. So they can see these to colors clearly how we do.
  
Dogs can't distinguish between red and green colors. Red & blue colors seems as gray on their view. And obviously dogs are not "color blinds"..