Different wavelengths of light excite different combinations of cones to varying levels, which generates our perception of color. You can see that the red cones are most sensitive to light, and the blue cones are least sensitive.
These colours (yellow, green, orange) are in the middle of the visible spectrum (the range of colours that our eyes can detect) and are the easiest for the eye to see. Our eyes are not as receptive or sensitive to the colours at the extreme ends of the visible spectrum (e.g., blue, violet/purple, and red).
This curve peaks at 555 nanometers of wavelength which corresponds to green colour in the normal visible spectrum of light, which means under normal lighting conditions, the eye is most sensitive to Green colour.
Pink, up to the 16th century, was considered a shade or red and was generally associated with the men. Only at the beginning of the 20th century it became a feminine color. This “gender change” occurred because of Elsa Schiaparelli and her creation of the iconic Shocking Pink.
Studies reveal that red is the most attractive colour to both men and women but, curiously, the two genders are attracted to the same colour for different reasons.
Gender-neutral colours like yellow, white, brown, green and orange are great choices for boys and girls alike. Even better, all of these colours can be paired with various shades of blue or pink if desired.
Blue. Blue is perhaps the best color for your bedroom. Not only is it more muted, but blue tones also tend to have more calming effects on the brain, as shown in a 2018 study of blue walls in a university residence hall.
The color pink, for example, is thought to be a calming color associated with love, kindness, and femininity. Many people immediately associate the color pink with all things feminine and girly.
Pink color is associated today with the feminine world, however, until 1920s, was a masculine color. Before this decade, the indicated colour for girls was white or blue.
When you think about the color pink, you are probably conjuring up images of little girls in pink dresses, with pink toys like Barbie or a Disney princess in a pretty gown. The color is overwhelmingly associated with delicacy and femininity.
The purple, white, and gold of the modern women's movement have their origins with the NWP. The nearly 100,000 women who marched in Washington, D.C. in 1978, in support of the Equal Rights Amendment, wore white, with pins, sashes, and ribbons of green, purple, and gold.