What is the difference between sRGB and Adobe RGB?

RGB is a standard for color space (representational form for displaying color).
There are two standards: sRGB and Adobe RGB.The two standards differ in terms of the range that the color space can re-create.

• sRGB
  This is the RGB color space standard prescribed by the International Electrotechnical Commission (IEC).
  sRGB is an international standard adopted by general software and hardware such as Windows, displays, printers, and digital cameras.
  By using sRGB-compatible devices for input and output, color differences can be minimized even between differing devices to re-create the desired color. However, the range of colors that can be expressed is somewhat limited.
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• Adobe RGB
  This is a standard proposed by Adobe Systems.
  It has a broader reproduction area range than sRGB, so it can express colors in more detail. For that reason, it is widely used in areas such as the printing industry.
  In order to correctly output Adobe RGB color as an image, compatible software along with compatible hardware such as displays and printers are needed.

NOTE: Low saturation images result from outputting images recorded in Adobe RGB to a TV or monitor or from printing with a printer not compatible with the Adobe RGB standard (DCF2.0/Exif2.21). If you do not have software or hardware compatible with the Adobe RGB standard, you should record in sRGB.