Blue is associated with trust, intelligence, wisdom, and health. It has a calming effect and is a masculine color. Dark blue represents knowledge and power while light blue represents health and healing. Red is associated with danger, energy, passion, love, determination, and quick decision making. It is an emotional color used in flags and danger signs. Black is associated with elegance, power, mystery, death, and evil. It is a good contrasting color that combines well with orange and red. White is associated with innocence, purity, goodness, light, cleanliness, and safety. It contrasts well with black.