Which term describes the luminous intensity of a color?

The term that describes the luminous intensity of a color is lightness. Lightness refers to how bright or dark a color appears, which is often influenced by the amount of light that reflects off a surface. It is a crucial component in color perception, as it helps to differentiate between shades of the same color.

In contrast, hue refers to the actual color itself, such as red, blue, or green, without any indication of brightness or darkness. Saturation is a measure of color intensity or purity, describing how vivid or dull a color appears. Adhesion, on the other hand, pertains to the ability of paint to stick to surfaces and is not related to color characteristics. Understanding these distinctions is essential in paint technology, as they can significantly affect color choices and applications in various contexts.