Chromaticity is the objective specification of the quality of color that remains consistent regardless of the illuminating light. It is a fundamental concept in color science that helps explain how we perceive the color of objects. Chromaticity is determined by two key measurements: hue and colorfulness. Hue refers to the degree to which light can be detected by the human eye and is associated with specific colors such as red, yellow, orange, green, blue, or violet. These colors can be objectively measured in terms of the wavelengths of light that create them. Colorfulness, on the other hand, is an attribute of visual perception that determines how chromatic a perceived color appears to be. It takes into account not only the wavelengths of light being reflected by an object but also the intensity of the light falling on the surface that reflects them.