Research has provided evidence that the impact of colour on our minds and bodies is indeed significant. For instance, the colour blue has a calming effect on us, while red has the potential to evoke feelings of anger. Interestingly, football teams donning red attire tend to perform better and have a higher likelihood of winning matches compared to those wearing different colours.

Moreover, a prominent expert in the field recently conducted an analysis of art sales and concluded that artworks incorporating the colour red tend to command higher prices than those devoid of it.

Colour, in essence, is the manner in which our eyes interpret light. It is the mechanism through which our brain comprehends the amalgamation of various light wavelengths that fall upon the retina of our eyes. Human vision operates on a trichromatic basis, as we possess three distinct colour receptors, known as cones, within our eyes. These cones, namely red, green, and blue receptors, are specifically designed to detect different wavelengths of light. However, individuals who are colour-blind experience a reduced ability to perceive colours due to the malfunctioning of one type of receptor.

Interestingly, there are individuals who possess tetrachromatic vision, meaning they possess an additional type of cone in their eyes. As a result, the average person can perceive approximately one million colours, whereas those with tetrachromatic vision have the remarkable ability to perceive 99 million colours.

Notably, birds also possess tetrachromatic vision, enabling them to perceive what we perceive as red in a multitude of distinct shades. This advantageous visual ability proves highly beneficial for birds when searching for food.