What is the brightest color?

The brightest color is typically considered to be yellow, as it appears to be the most luminous and intense color to the human eye. Yellow is often associated with concepts of energy, happiness, and positivity due to its vibrant and attention-grabbing quality. In terms of light, yellow has a wavelength of approximately 570 to 590 nanometers, making it one of the most visually striking colors in the visible spectrum. Additionally, yellow is known to stimulate mental activity and improve focus.