What colors does a dog distinguish best? - briefly
Dogs are known for their ability to see shades of blue and yellow best, while they struggle with distinguishing between red and green hues. This unique color perception is due to the presence of only two types of cone cells in their eyes, compared to three in human eyes.
What colors does a dog distinguish best? - in detail
Dogs, unlike humans, are not colorblind but rather dichromatic, meaning they have two types of cone cells in their eyes that detect colors. These cells are sensitive to blue and yellow wavelengths. This means dogs can see shades of blue and yellow best, while other colors may appear as various shades of gray to them. Specifically, they distinguish blue, violet, and yellow hues most effectively. Reds, greens, and oranges, however, are perceived by dogs in a more limited spectrum, often appearing as dull browns or grays. This color perception is crucial for their visual acuity and helps in tasks such as tracking and recognizing objects based on shape rather than color alone.