The below online converter provides you an easy-to-use calculator, and you can convert a coordinate of a color space into another, among RGB, CMYK, CIELAB, and XYZ. These color spaces can be converted to each other, by using formulas under the same white reference (D65, D50, A, C, D55, D75) and observer view angle (2°, 10°). The above each color space has its position and range in the XYZ color space, with different degree of color and fineness to express a certain color. The RGB color space is smaller than the visible spectrum of light. In addition, CMYK color space is commonly in printing industry, in which uses cyan, magenta, yellow, and black, four colors overprinting. RGB color model comes from the light source of three primary colors red, green and blue. The RGB color model is commonly used in display monitors and digital image design and webpage design (In HEX code). In addition to the above CIELAB color space, there are also other common color space in other application fields. Therefore, most of the colorimeter uses CIELAB color space today, instead of XYZ. Compared with XYZ Color Space, the colors represented by CIELAB color space has better linearity and closer to human's visual perception. Hunter in 1948, who is the founder of Hunter Associates Laboratory, Inc. If instead you want the input color space to be linearized Adobe RGB (1998), then you can use the lin2rgb function.

In 1964, CIEUCS and in 1976 CIELAB/CIELUV extensions were introduced in the CIE. There are '*' symbols attached with the three coordinates' letter, L, a, b, to distinguish the older Hunter Lab color space, which was defined by Dr. Examples of such models are RGB (Red, Green, Blue) and a variant for. XYZ primary color systems and it has therefore been introduced into. CIELAB uses (L*, a*, b*) three coordinates to represent a human visual color. described at less redundancy in CIELAB dimensions than in linear RGB or. CIELAB is the mainstream color space coordinate system, which was defined by International Commission on Illumination (CIE) in 1976.

Postscript rgb to cielab