It depends on the culture. From some research I did:
In Western countries, red evokes excitement, danger, urgency, and love. When red is combined with green, the color scheme becomes festive—the traditional colors of Christmas. Red is associated with purity in India (a country where brides traditionally wear red wedding dresses). In Latin American countries, red can also have religious connotations when combined with white. Red evokes danger and caution in the Middle East. In China, red symbolizes luck and happiness (one reason it is used in Chinese restaurants in the U.S.). It is also the color of the Chinese New Year. However, in former Eastern European Bloc countries, red can still evoke associations with communism.