Color space is a vey useful and widely applied tool in image editing programs and file formats while the majority of people may not be aware of its use. Generally speaking, a color space is a tool which is of great help for people to understand the color capabilities of a particular device or digital file for it shows people the specific organization of colors. It combines with physical device profiling, which enables it to reproduce representations of color, no matter it is analog or digital representation. When reproducing color on another device, color spaces will clearly show whether the shadow/highlight detail and color saturation can be retained and whether they have been damaged or to what degree they have been damaged in such process.
There are many different types of color space which also have different applications accordingly. The common types and applications are as follows:
Device-dependent spaces can show color relative to some other reference space. With this representation, you are able to get some very useful information about the subset of colors. These can be shown when you use a specific monitor or printer or can be captured when you use a specific digital camera or scanner.
Device-independent spaces can show color in absolute terms. Generally speaking, these will be used as universal reference colors. As a result, when comparing other devices, they can be used as a backdrop. Otherwise, these color spaces will not be seen by users for few of them are aware that these color spaces are interacted with the photo editing process.
The range of colors is restricted to a standard color palette in image editing programs and file formats by the working space. Adobe RGB 1998 and sRGB IEC61966-2.1 are the two most widely utilized working spaces in digital photography.