Red
Red is warming and stimulating. It relieves aggravated vata and reduces excess kapha. However, because of its heating effect, overexposure to this colour may aggravate pitta and result in inflamatory ailments such as conjunctivitis. Red is related to the colour of our blood. It stimulates the formation of red blood cells and improves circulation. It also helps to maintain colour in the skin and gives energy to nerve tissue and bone marrow. Pink has a gentler effect, promoting love and calmness, but it may be conducive to lethargy in kapha individuals.

Blue
Blue is a cooling colour that relieves aggravated pitta. It has a calming effect on the body and mind and helps to correct liver disorders. When a baby has jaundice, placing the baby under a blue light will help it heal faster. Blue is the colour of Pure Consciousness. Overexposure to blue may cause aggravation of vata and kapha and may provoke congestion.