| − | '''RoyGBiv''' is an [[mnemonic]] that uses the first letter of each of these colors: ''[[red]], [[Orange (color)|orange]], [[yellow]], [[green]], [[blue]], [[indigo]], [[violet]]'' in order of the color [[spectrum]]. It is pronounced as if it were a name: "Roy G. Biv". Red is the color of lowest energy and violet is the highest-energy color. In RoyGBiv, the colors are arranged in the order of decreasing wavelengths, with red being 650 nm and violet being about 400 nm. | + | '''RoyGBiv''' is an mnemonic that uses the first letter of each of these colors: ''[[red]], [[Orange (color)|orange]], [[yellow]], [[green]], [[blue]], [[indigo]], [[violet]]'' in order of the color [[spectrum]]. It is pronounced as if it were a name: "Roy G. Biv". Red is the color of lowest energy and violet is the highest-energy color. In RoyGBiv, the colors are arranged in the order of decreasing wavelengths, with red being 650 nm and violet being about 400 nm. |