CIELAB color space | cie colour
Standardcolorspacewithcolor-opponentvaluesCIELABcolorspacetopviewCIELABcolorspacefrontviewTheCIE1976(L*,a*,b*)colorspace(CIELAB),showingonlycolorsthatfitwithinthesRGBgamut(andcanthereforebedisplayedonatypicalcomputerdisplay).Eachaxisofeachsquarerangesfrom−128to127.TheCIELABcolorspace,alsoreferredtoasL*a*b*,isacolorspacedefinedbytheInternationalCommissiononIllumination(abbreviatedCIE)in1976.[a]Itexpressescolorasthreevalues:L*forperceptuallightnessanda*andb*forthefouruniquecolorsofhumanvision:...
Standard color space with color-opponent values
CIELAB color space top viewCIELAB color space front viewThe CIE 1976 (L*, a*, b*) color space (CIELAB), showing only colors that fit within the sRGB gamut (and can therefore be displayed on a typical computer display). Each axis of each square ranges from −128 to 127.The CIELAB color space, also referred to as L*a*b*, is a color space defined by the International Commission on Illumination (abbreviated CIE) in 1976.[a] It expresses color as three values: L* for perceptual lightness and a* and b* for the four unique colors of human vision: red, green, blue and yellow. CIELAB was intended as a perceptually uniform space, where a given numerical change corresponds to a similar perceived change in color. While the LAB space is not truly perceptually uniform, it nevertheless is useful in industry for detecting small differences in color.
Like the CIEXYZ space it derives from, CIELAB color space is a device-independent, "stan...