Are Dogs Color Blind?

By The Detect Color Blindness editorial team Last reviewed 2026-07-05

Not completely. Dogs aren't black-and-white, but they are dichromats, seeing the world roughly like a person with red-green colour blindness: strong on blues and yellows, weak on reds and greens.

What colours can dogs see?

Humans have three cone types; dogs have two. That gives them a blue-yellow colour world without a true red-green channel. To a dog:

Blue and yellow look distinct and vivid.
Red, orange and green collapse toward greyish, brownish or yellowish tones.
A bright red toy on green grass, high-contrast to us, can look like one muddy field to a dog.

This is very close to human deuteranopia. Dogs make up for the narrower colour range with excellent motion detection, wide peripheral vision and strong low-light sensitivity.

Why the "dogs see black and white" myth persists

Early popular writing oversimplified animal vision. In reality, behavioural experiments show dogs can and do use colour, they can be trained to pick a blue or yellow target over a grey one. They just have fewer colour categories than we do.

Practical tip: pick blue or yellow toys

If your dog keeps "losing" a red or orange ball in the grass, that's colour vision, not clumsiness. A blue or yellow toy stands out far more clearly to them. The same goes for training targets and agility equipment.