Dogs / Behaviour

Colour Perception is Limited

Dogs are not colour-blind in the total sense, but they are dichromatic — their eyes contain only two types of colour receptors (cones), compared to three in humans. They see the world primarily in sha

Close-up black and white portrait of a playful furry dog showing its teeth, capturing emotion and texture.
Photo by Suvan Chowdhury on Pexels

Dogs are not colour-blind in the total sense, but they are dichromatic — their eyes contain only two types of colour receptors (cones), compared to three in humans. They see the world primarily in shades of blue and yellow, while reds and greens collapse into muddy brownish-grey tones.

A bright red ball on green grass, which looks vivid to a human, may be nearly invisible to a dog because both colours register as similar dull shades.

Practical takeaway:

  • Dogs respond better to blue or yellow toys — they genuinely stand out in the dog's visual field
  • This applies to toy selection, training markers, and even agility equipment colours

Article content © Ravi Teja. All rights reserved.

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