HSL

• are alternative representations of RGB color model

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RGB

• used for creating images on your computer screen
• additive (i.e. colors get brighter as you blend them together)

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CMYK

• are the four basic colors used for printing color images
• subtractive (i.e. colors get darker as you blend them together)

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CIE (XYZ Lab Luv)

• device-independent color space
• describe all colors visible to the human eye based upon the average response from a set of people with no vision problems

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Device-Dependent Spaces

express color relative to some other reference space. These can tell you valuable information about the subset of colors that can be displayed using a particular monitor or printer or can be captured using a particular digital camera or scanner

Device-Independent Spaces

express color in absolute terms. These often serve as universal reference colors, so they’re useful as a backdrop for comparing other devices. Otherwise, these are usually an unseen color space since they’re knowingly interacted with during the photo editing process only rarely

Working Spaces

are used by image editing programs and file formats to constrain the range of colors to a standard palette. Two of the most commonly used working spaces in digital photography are Adobe RGB 1998 and sRGB IEC61966-2.1. For an in-depth comparison for each of these color spaces, please see sRGB vs. Adobe RGB 1998