What is Luminosity
LUMINOSITY
Color is a wavelength. Wavelengths can be measured and therefore the luminosity of a color can be measured. The definition from dictionary.com says it more clearly than I could: "the brightness of a light source of a certain wavelength as it appears to the eye, measured as the ratio of luminous flux to radiant flux at that wavelength."
Luminosity of a color is about how LIGHT or DARK it literally is; how much light it keeps and how much it is able to emit or bounce back into the room. Notice on the graphic how the lightness of the black on the far left is markedly less than the lightness of the neutral gray on the opposite end. When it comes to paint colors, the measure of luminosity is available to you on paint chips or fandecks and it is call LRV. "L" = light or luminosity. See this article to better understand LRV and paint colors. LRV - What is Light Reflectance ValueThe Three Parts of Color
Color is a wavelength. Wavelengths can be measured and therefore the luminosity of a color can be measured. The definition from dictionary.com says it more clearly than I could: "the brightness of a light source of a certain wavelength as it appears to the eye, measured as the ratio of luminous flux to radiant flux at that wavelength."
Luminosity of a color is about how LIGHT or DARK it literally is; how much light it keeps and how much it is able to emit or bounce back into the room. Notice on the graphic how the lightness of the black on the far left is markedly less than the lightness of the neutral gray on the opposite end. When it comes to paint colors, the measure of luminosity is available to you on paint chips or fandecks and it is call LRV. "L" = light or luminosity. See this article to better understand LRV and paint colors. LRV - What is Light Reflectance Value
The Three Parts of Color
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