What is the first color of the rainbow?

Rainbows. When the Sun is shining and there is rain as well you may see a rainbow in the sky! As sunlight passes through the water droplets, it is bent and split into the colors of the rainbow . Sunlight is known as visible or white light and is actually a mixture of all visible colors. read more

The order of colors in a rainbow is easiest to remember by the following mnemonic (a formula that helps one remember something): ROY G. BIV. R=red, O=orange, Y=yellow, G=green, B=blue, I = indigo, and V=violet. read more

The first color of a rainbow is red. It forms the rainbow's outer arc and has the longest wavelength. Because light bends at 42 degrees to produce this color, humans can almost always see it, even if the other colors in the rainbow aren't apparent. read more