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Is there anything 8th colour in the rainbow?
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The idea that there are seven colours in the rainbow still lasts to this day. At a glance, you might think this to be true, but closer inspection of a rainbow shows that there are far more than just seven individual hues.

A rainbow is not a pure spectrum. It is actually made up of a myriad of individual spectral colours that have overlapped and mixed.

The basic sequence for primary rainbows is always the same running from;

Red (the longest wavelength at around 780 nm) through to Violet (the shortest wavelength in the sequence at 380 nm).

The seven colour idea is still a popular one and it helps remember the order of the most recognisable colours in a rainbow. However, remember that there is also a whole range of colours, so many that we cannot distinguish them all with the naked eye.

The idea that there are seven colours in the rainbow still lasts to this day. At a glance, you might think this to be true, but closer inspection of a rainbow shows that there are far more than just seven individual hues.

A rainbow is not a pure spectrum. It is actually made up of a myriad of individual spectral colours that have overlapped and mixed.

The basic sequence for primary rainbows is always the same running from;

Red (the longest wavelength at around 780 nm) through to Violet (the shortest wavelength in the sequence at 380 nm).

The seven colour idea is still a popular one and it helps remember the order of the most recognisable colours in a rainbow. However, remember that there is also a whole range of colours, so many that we cannot distinguish them all with the naked eye.