From an evolutionary perspective, the visual system of dogs is a perfect embodiment of their ancestors’ survival strategies. The ancestors of canids were active predators at dusk, and they did not need to distinguish mature fruits from green leaf backgrounds under sunlight like their primate ancestors did. For early canids, the key visual tasks were detecting motion, recognizing contours, and determining distance in low light.

Although dogs have limited color perception, color still affects their behavior and emotions. Research has shown that dogs have the most positive reactions to blue and yellow. Blue objects are often seen by dogs as calm and reliable, while yellow objects appear eye-catching and interesting.

This explains why many dog toy manufacturers tend to use blue and yellow as the main color tones.

On the contrary, red is a dull color in the eyes of dogs, which may trigger uncertain or alert reactions. Green toys may ‘disappear’ from the dog’s color world on the grass, as both appear in similar yellow gray tones.

Smart pet owners and trainers will use this knowledge to:

Use blue or yellow training props to improve visibility

Avoid using green frisbee on green grass

Add reflective materials to items used at night to compensate for the lack of color information

Interestingly, dogs seem to be able to learn “color” associations based on brightness and saturation. Even if they cannot perceive red like humans, they can learn that ‘that dark circular object represents going out to play’.

Chemical perspective inspiration: The psychological impact of color transcends species boundaries.

As a supplier of dyes and pigments, we provide not only the color itself, but also the emotional value and behavioral guidance carried by the color. When customers choose our phthalocyanine blue for brand packaging, they purchase the “reliability” conveyed by the blue color;

When they choose our iron oxide red for architectural coatings, they buy the “warmth” and “vitality” symbolized by the color red. Understanding color psychology enables us to provide customers with value-added advice beyond technical specifications.

Understanding the color vision of dogs is not just an interesting cold knowledge. It profoundly reveals a core principle: “Color” is not an objective absolute attribute, but a subjective “perceptual experience” that depends on the physiological structure of the observer. The ‘red’ we see may appear as a UV pattern in the eyes of bees, dark gray in the eyes of dogs, but in the eyes of some shrimp, it is a dazzling world composed of sixteen primary colors that humans cannot imagine. This principle is the cornerstone of science and art in the dye and pigment industry. Every chemical substance we synthesize – whether it’s azo dyes, anthraquinone dyes, or phthalocyanine pigments – is essentially precisely manipulating the reflection and absorption of light, triggering specific color perception reactions in the human “tricolor vision” system.