Lightness

Perceptual attribute of color indicating how light or dark it appears.

brightness luminance

Lightness refers to the perceptual attribute of color that corresponds to how light or dark a color appears. It is one of the primary dimensions used in color theory, typically measured on a scale from black (no lightness) to white (maximum lightness).

Lightness comes from the Old English 'lēohtnes,' meaning 'brightness, clearness.'

Lightness tells you how bright or dark something looks, like comparing a white cloud to a black cat.

What is lightness? It describes how light or dark a color appears
How does it differ from brightness? Brightness is a physical property, while lightness is how we perceive color
Is white considered high lightness? Yes, white has the highest possible lightness value

Darkness

Color perception Visual attribute

color perceptual characteristic visual attribute