What Are the 7 Rainbow Colours? Rainbow Colours List

We always watch the sky, clouds, and rainbows in the rainy season. All of us enjoy seeing rainbows in the sky, no matter what age we are. We see a colour spectrum in the sky that we call a rainbow. Here is a list of rainbow colours that are visible to human eyes.

List of rainbow colour names

Rainbow colours

Here is a list of the seven colours of a rainbow.








How to remember the colours of rainbows

There is an easy way to remember them. We call it a mnemonic. In this, the first word of each word is taken to create a new word. And the mnemonic for the rainbow colours is ROY G BIV. In this mnemonic, R stands for red, O for orange, Y for yellow, G for green, B for blue, I for indigo, and V for violet.

These seven colours in rainbows are visible to human eyes.

How does a rainbow form?

We always see the rainbow in the sky in the rainy season. Rainbows are the most beautiful and fascinating naturally occurring phenomenon. In the rainy season, when sunlight enters raindrops present in the air, there is a reflection, refraction, and dispersion of the sunlight. It results in the appearance of a spectrum of light in the sky. It is in the form of a circular arc with 7 colours in the sky.

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More about the rainbow colours

Here, you will see more information about the colours of rainbows.



Wavelength Range (nm)


 This is a primary colour. Red is the uppermost colour of the rainbow. It has the longest wavelength.

620 -750


Orange is the second uppermost colour, below red in rainbows. This combination of yellow and red is the first secondary colour in the spectrum.

590 – 620


 Yellow is the third uppermost colour of a rainbow. This is a second primary colour.

570 – 590


 Green is the fourth uppermost colour of a rainbow. This colour appears in the middle of the spectrum. This is a combination of blue and yellow.

495 – 570


 Blue is the third bottom colour of a rainbow. It is the third primary colour in the rainbow.

450 – 495


 Indigo is the second bottom colour of a rainbow. It is a combination of purple and blue, a tertiary colour.

425 – 450


 Violet is the lowermost colour in the rainbow. It is a combination of red and blue. Violet has the shortest wavelength.

380 – 450

Frequently asked questions about rainbow colours

Why are there 7 colours in the rainbow?

There are multiple mixed and overlapped individual colours in the rainbow. But the human eye can only see seven colours in the rainbow.

Who discovered 7 colours?

English mathematician and physicist Isaac Newton discovered seven visible colours in clear white light around 1665.

What is the short form of 7 colours?

We can call the rainbow’s seven colours, in short as-,

  • Richard Of York Gave Battle In Vain
  • ROY G BIV, or

What is the full form of Vibgyor?

VIBGYOR is the mnemonic for violet, indigo, blue, green, yellow, orange, and red, respectively. These are the visible colours in the light spectrum. This mnemonic is commonly used to remember the colours in the light spectrum.

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Hi, I am Madhuri Kherde, an educationist and founder of TheBestUknow.com. I like teaching as well as blogging. I hope you may like my posts on this website.