why does yellow seem “brighter” than other colors?
In: Biology
The answer to your question isn’t simple since color theory and the human physiological response to the light spectrum can be somewhat complex.
Yellow is often perceived as brighter as the brightness (dark or light) and the saturation (intensity or purity) of yellow are often much higher than other primary colours.
In terms of printed yellow, yellow pigments are often less dense than other pigments meaning they often appear brighter.
In terms of displays like a TV, producing yellow uses a green and red light but this requires high brightness values so may appear brighter even if not significant in terms of actual brightness.
Also individual physiology plays a huge part as all people are more sensitive to certain colours than others, nobody sees colours as accurately as everyone else so some might see yellow more bright than others as the eyes and/or brain process this colour easier or better.
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