How many colors are in a rainbow?
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Q:

How many colors are in a rainbow?

A:

Quick Answer

There are seven colors in a rainbow: red, orange, yellow, green, blue, indigo and violet. The acronym ROYGBIV, pronounced "Roy G. Biv," is a popular mnemonic to remember the colors in order.

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Full Answer

A rainbow is formed when white light, such as sunlight, is bent through a prism or through water droplets suspended in the air. The prism or water causes light to separate by wavelength, because light of longer wavelengths such as indigo and violet bends more than light of shorter wavelengths. If a rainbow is passed through a second prism, the separated light can be re-combined into white light.

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Related Questions

  • Q:

    What seven colors are in white light?

    A:

    White light can be split into seven colors, namely, red, orange, yellow, green, blue, indigo and violet. The colors can be remembered using the acronym "ROYGBIV."

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  • Q:

    What color goes with lime green?

    A:

    Lime green matches with many colors, including yellow, true green and violet. However, any decor or outfit using lime green should follow one basic theme so that too many bright colors do not become overwhelming.

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  • Q:

    What two colors mix to make purple?

    A:

    The secondary color purple or violet is made by mixing the primary colors red and blue. However, to get a purple that is not muddy in appearance, it is important to mix the right types of blue and red, especially when mixing paint colors to use in a painting.

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  • Q:

    What are the wavelengths of the colors of the rainbow?

    A:

    The wavelengths of the colors of the rainbow range from 390 nanometers to 780 nanometers. There are wavelengths that are lower or higher than those in the visible spectrum, and several types of radiation are simply light waves with other wavelengths.

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