Blue is the one of the three additive primary colours and is the colour of the clear sky and the deep sea on Earth. On the optical spectrum, blue is located between violet and green.
Blue is calming. It can be strong and steadfast or light and friendly. Almost everyone likes some shade of the color blue.
Blue is the coolest color – the color of the sky, ocean, sleep, twilight. The ancient Egyptians used lapis lazuli to represent heaven. Blue symbolizes the Virgin Mary. A pure blue is the color of inspiration, sincerity and spirituality.