Yellow is the colour of sunshine, joy and happiness. It stands for freshness, positivity, clarity, energy, optimism, enlightenment, remembrance, intellect and loyalty.
Studies show that the meaning of the color yellow can be warmth, cheerfulness, increased mental activity, increased muscle energy. The color yellow helps activate the memory, encourage communication, build confidence and stimulate the nervous system.
Bright yellow is an attention getting color, and when used in combination with black, is creates one of the easiest color combinations to read and see from long distances. This is why school buses, taxi cabs, and traffic signs are painted yellow and black.