Symbolising creativity, royalty, ambition and luxury, violet has the shortest wavelength, from 380-450 nm. Its name is derived from the commonly found violet flower.  Fun fact: Violet is often confused with purple, with the latter being more popular and symbolic in nature.

A combination of blue and violet, indigo's existence has been much debated. Since it's hard to distinguish, its wavelength has been measured approximately at 425-450 nm.  Fun fact: Indigo is one of the oldest dyes in the world and is derived from the plant Indigofera Tinctoria.

This feel-good colour is known for its peaceful aura and healing properties. It’s positioned at a wavelength of 450-495 nm, and happens to be one of the rarest colours in nature. Fun fact: Owls are the only birds that can see the colour blue.

The centre of the rainbow is filled with  green, which symbolises wealth and new experiences. With a wavelength of 495-570 nm, it is called the colour of life. Fun fact: The human eye is most sensitive to a wavelength of 555nm, which corresponds to green.

Yellow has a wavelength of 570-590 nm. Easily one of the brightest and most recognisable colours in the spectrum, it usually symbolises happiness and inspiration. Fun fact: The word ‘yellow’ is derived from the Old English term, geolu.

The second last colour in the rainbow is orange, which represents freshness, vibrancy and warmth. Having a wavelength of 590-620 nm, it is easily spotted in oranges, carrots, goldfish, and even in fire. Fun fact: The most basic way to get the orange colour is by blending red and yellow.