Can Dogs See Colors?

One of the most frequently asked questions about dogs is, "How do dogs see?" For many years, there has been a myth that dogs see the world in black and white. Although dogs don't see the world as gray, they can't see a rainbow as colorful as humans. In this article, we will try to explain exactly how dogs see the world.

What is Dog Vision Like?

Dogs can see some colors, but not like we do. However, this does not mean that their vision is bad or inadequate. Dogs, who have excellent vision, see much better than us, especially at night. "How do dogs see the world?" To fully answer this question, it's necessary to first understand color blindness. Because understanding a dog's worldview is only possible by correctly perceiving color blindness. What is Color Blindness? The British scientist John Dalton conducted the first studies on congenital color blindness at the end of the 18th century. These studies arose from his brother's inability to see certain colors, resulting in him confusing red with green and pink with blue. Red-green color blindness is the most common color deficiency in humans. Red-green color blindness is seen in 8% of men and 0.5% of women of Northern European descent. Color blindness is a disorder in the molecules in the retina called cones that perceive colors. The retina converts light into electrical signals, which are transmitted to the brain via the optic nerves and create visual images. Color blindness can be congenital or can develop later due to illness or injury. In dogs, however, this condition does not result from a deficiency. This is how dogs see. Cone cells in the eye provide daytime vision and create color perception. Cells called rods provide night vision and peripheral vision (edge-to-edge vision). Each cone cell perceives the wavelength of light. Humans have three cone cells and can generally see the entire spectrum of light. Dogs, however, only have two cone cells. These three cone cells in humans and some other primate species are called trichromatic. Dogs, on the other hand, are dichromatic because they only have two types of cone cells.

What is Color Blindness?

British scientist John Dalton conducted the first studies on congenital color blindness at the end of the 18th century. These studies arose from his brother's inability to see certain colors, resulting in him confusing red with green and pink with blue. Red-green color blindness is the most common color deficiency in humans. It is seen in 8% of men and 0.5% of women of Northern European descent. Color blindness is a disorder in the molecules in the retina called cones that perceive colors. The retina converts light into electrical signals, which are transmitted to the brain via the optic nerves to create visual information. Color blindness can be congenital or acquired later in life due to illness or injury. In dogs, however, this condition does not result from a deficiency. Dogs' vision is as follows: Cone cells in the eye provide daytime vision and create color perception. Cells called rods provide night vision and peripheral vision. Each cone cell perceives the wavelength of light. Humans have three cone cells and can generally see the entire spectrum of light. Dogs, however, have only two cone cells. These three cone cells in humans and some other primate species are called trichromatic. Dogs, however, are dichromatic because they only have two types.

What Colors Do Dogs See?

The two cone cells in a dog's eye only allow them to perceive blue and yellow. Green and red colors are completely absent in dogs. Therefore, the answer to the question "How do dogs see colors?" is that dogs can see blue and yellow. There is no change in light perception. In this respect, yellow, brown, gray, and blue colors are present. Bright red toys are actually seen as brown by dogs. Therefore, it is possible to say that dogs' color perception is quite similar to that of people with green-red color blindness. As a result, dogs cannot distinguish between green and red colors.

What Do Colors Mean to Dogs?

After answering the question "Do dogs see color?", it is important to understand what these colors mean to them. Many people buy brightly colored toys, leashes, or beds for their dogs. Although these are attractive to humans, there are doubts about whether they will attract the attention of dogs. A colorful rainbow on a toy does not offer a true color feast for dogs, it does not provide the expected visual effect. Marketers and graphic designers know that humans like bright red and orange colors. However, since they cannot perceive these colors, these colors have no meaning for dogs. Dog trainers or enthusiasts make their choices when selecting products for dogs based on the dogs' color perception. Professional dog training sets are usually blue and yellow. Dogs can find frisbees and balls of these colors much faster. With careful observation, it's possible to see that dogs prefer tennis balls to other toys and stay interested in them longer. This isn't mainly because they can see green; it's because they can distinguish yellow and blue from green.