Colour therapy or chromotherapy essentially is using the frequency of color to balance the energy of the body. The frequency of color assists not only the bringing about homeostasis in the body but in the whole multidimensional fields of the human. Colour is light and energy. There are some colours that are visible to the naked eye and others that are invisible. Those we cannot see are the frequencies and wavelengths that are associated with non-visible light such as x-rays and ultraviolet light. The visible spectrum of colour is visible because it reflects, bends, and refracts through all kinds of particles, molecules and objects. There are a variety of wavelengths that light can be categorized, producing different types of light.

Visible wavelengths fall approximately in the 390 to the 750-nanometre range and are known as the visible spectrum. Colour can be used in various ways to bring about balance and healing. It can be directly or indirectly applied to the body, visualized, and ingested through the skin, mouth, eyes and through the breath.