Vib Gyor

Vib Gyor is a mnemonic, often used as a convenient way to remember the order of the colors in the visible light spectrum after it has been refracted, as through a prism or in a rainbow. It's an acronym representing:

• Violet
• Indigo
• Blue
• Green
• Yellow
• Orange
• Red

The sequence follows the order of decreasing wavelength and increasing frequency within the visible spectrum. While presented as distinct bands, the colors actually transition continuously from one to the next. The mnemonic provides a simplified and easily recalled method for ordering them. Some sources may omit indigo, resulting in a simpler acronym. The usefulness of including indigo as a distinct color has been debated, as its perceived shade can vary significantly depending on lighting conditions and individual perception.