Like most mammals, dogs only have 2 types of color receptors. Each receptors ‘read’ the different colors by its wavelength and combines them thus giving you your view on colors. A human has 3 color receptors which allows us to see more colors than dogs.
Can they see colors other than black and white? The answer is YES.
The photo above shows the how the color spectrum looks like to both dogs and humans. In the dog’s view, it is mainly yellow and blue with a slight hint of brown and grey.
With this, I hope you are able to visualize things more in your dog’s point of view. This knowledge can also be used to aid you in different ways – Your creativity is the limit. One way is that you can use the knowledge of this for your dog’s training sessions and relate yellow or blue to a specific behavior or mood.
That is all I have to share. Cheers!