Q:

What are the seven colors of the rainbow?

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Quick Answer

The seven colors of the rainbow are red, orange, yellow, green, blue, indigo and violet. The acronym Roy G. Biv is often employed by teachers in classrooms as a method of helping students remember the colors and their order.

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Full Answer

The seven colors of the rainbow represent the layer of visible light emitted by the sun. The longer the wavelength of light and the less bendable it is, the more visible its color. Red, orange, yellow and green have the longest wavelengths and the least flexibility, which is why they're the most commonly identifiable colors in a rainbow. On the other hand, conditions must be extremely precise for violet, the shortest and most bendable of the light waves, to be clearly visible.

Rainbows are optical phenomena that occur when moisture in the air reflects as a prism for reflecting sunlight. Although most people think of rainbows as an arc shape, they are actually circular. From most elevation levels on earth, however, only half of the circle is visible. In extremely high altitudes it is sometimes possible to see the entire circle. Sometimes moisture within the air projects a double reflection. This results in a double rainbow, which is actually two rainbows on top of each other.

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Related Questions

  • Q:

    What colors make indigo?

    A:

    Indigo is made by combining blue and red. This color always falls between blue and violet on the color spectrum.

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  • Q:

    What are cool colors?

    A:

    Cool colors include different shades of blue, green and purple. Sometimes they also include shades of gray. They are the opposite of warm colors, and their lower saturation gives off a calm, soothing effect.

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  • Q:

    Who invented colors?

    A:

    No single person invented colors, as they are naturally occurring. However, the person who formulated the concept of viewing objects, and parts of objects, as having different shades and hues was Sir Isaac Newton.

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  • Q:

    What colors match blue?

    A:

    Blue can be harmonized with the secondary colors green and purple. It can also match the tertiary colors of blue-green, often called cyan, and blue-purple, often called ultramarine, based on analogous colors. Blue harmonizes with orange based on complementary colors, according to basic color theory.

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