What Colors do Dogs See?

The eyes of both people and dogs contain light catching cells called cones, that respond to color. Dogs have fewer cones than humans and fewer kinds of cones (humans have three) which means they can see color, but not at the full, vibrant range as people. The most common kind of colorblindness in humans is because the person is missing one of the three kinds of cones… This is the situation with dogs who also only have two kinds of cones.