Before you can determine which colors a dog will tend to prefer, you first have to determine which colors they actually see, and then let them choose from among those.

It’s well known that dogs don’t see as many colors as we do – similar to color blindness in people. Whereas humans have three ...

There's a common misconception that dogs can only see in black and white — in reality, they can see colors like blue and yellow, though their color vision is much more limited than humans.