In Chinese culture, colors corresponded with the five primary elements, the directions, and the four seasons. Blue was associated with wood, east, and spring.
Blue, blue-green, and green are sacred colors in Iran, where they symbolize paradise.
In India, paintings of the god Krishna often depict him as having blue skin.
In the United States, post office mailboxes are typically blue.
In Mexico, blue is the color of mourning.
In Aztec culture, blue symbolized sacrifice.
In Greece, the color blue is believed to ward off “the evil eye.” Those who believe in this Greek superstition often wear a blue charm necklace or blue bracelet for protection.