Dogs are not completely colorblind; they see the world in a "blue to yellow" spectrum.
Human eyes contain three types of color-detecting cone cells that recognize red, green, and blue. This is known as trichromatic vision. Dogs possess dichromatic vision, meaning they only have two types of cone cells. Video Title- Dogg vision
Because purple is a mix of blue and red, and dogs cannot perceive red, purple simply looks like a shade of blue to them. Dogs are not completely colorblind; they see the