Dogs can see color, but their color vision is limited compared to humans. They have dichromatic vision, meaning they have two types of color-detecting cone cells in their retinas, while humans have three. This causes dogs to see the world primarily in shades of blue and yellow, but they have difficulty seeing red and green, which may appear as shades of brown or gray to them. Their color spectrum is similar to what a person with red-green color blindness might see. So, dogs do see color, but it is a narrower and less vibrant range than human color vision.