Confidence comes in many forms, just like the light waves that create our spectrum of visual colors. Colour Affects notes that there are four primary psychological colors; red, blue, yellow, and green (which is technically a secondary shade on the official color wheel). Green is unique in the natural world. According to National Geographic, "Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light."
Yellow may seem too bright for some tastes because it is a long wavelength and therefore more stimulating than other colors, while red is the longest wavelength, which makes it appear the closest to our eyes. In the clothes we wear, colors are often associated with positive emotions. As Body and Soul argued, although it's generally believed that wearing certain colors can influence your mood, this isn't strictly true.
Certain shades can signal your brain to release more dopamine, though, which may make you feel more positive overall. Several studies have examined which colors make us feel most attractive, for instance. One 2017 study tasked 180 German students with wearing blue or red shirts and then rating their own appearance. Ultimately, the experiment demonstrated that they felt more good-looking and even sexually appealing while wearing one color over the other.
