The color yellow typically symbolizes happiness, warmth, sunshine and optimism; in traffic signs yellow symbolizes caution. Yellow can also indicate illness, such as in the yellowing of the skin with jaundice. In some religions, such as Hinduism, yellow represents the gods.
Yellow is the most visible color and the one that is processed first in the human eye. Due to this, yellow is often used in signs to indicate an emergency or danger. The color also has several unique meanings in different regions of the world. For example, a bright yellow symbolizes death in parts of Mexico.Yellow is the symbol of courage in Japan, while in China it is used to indicate an adult film.