Convert Rgb to Lab

Enter values for an Rgb to convert it to Lab, or vice versa.

Note: ColorMine uses the sRgb color space. More information on sRgb vs AdobeRgb.
0 to 255
0 to 255
0 to 255
0 to 100
-128 to 128
-128 to 128


The Rgb color space consists of all possible colors that can be made by the combination of red, green, and blue light. It's a popular model in photography, television, and computer graphics.


Cie-L*ab is defined by lightness and the color-opponent dimensions a and b, which are based on the compressed Xyz color space coordinates. Lab is particularly notable for it's use in delta-e calculations. Read more about it here.

Looking for the code?

All calculations were doing using the open source ColorMine library.

The code used for the Rgb and Lab conversions can be found on Github:

Conversion Example:

var rgb = new Rgb();
var lab = rgb.To<Lab>();

Color conversions performed using the open source ColorMine library.

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Cool! Creating famous images from color palettes found in other images:

7/11/2014 1:43:35 AM

Looking for a specific conversion?