What term is used to describe the dimension of color determined by the wavelength of light?

The term that describes the dimension of color determined by the wavelength of light is "Hue." Hue refers to the specific color perceived, such as red, blue, yellow, or green, and it is directly linked to the wavelength of light that the human eye perceives. Each color corresponds to a specific wavelength within the visible spectrum, allowing us to identify and categorize colors.

Chroma, on the other hand, refers to the purity or intensity of the color, indicating how vivid or muted a color appears compared to a neutral gray. Tonal value relates to the lightness or darkness of a color, rather than its actual hue. Intensity reflects the brightness of the color, which can vary regardless of the specific hue. Each of these terms plays a role in color theory, but only hue specifically addresses the wavelength aspect of color.