English: This is a map that compares how much of the color spectrum (that large oval in the far back) different color spaces cover. ProPhoto RGB covers the most of the spectrum, Adobe RGB is the second largest, and sRGB is the smallest. Also shown is the color limits of the Epson 2200 printer.

From the original document: A Color Managed Raw Workflow - From Camera to Final Print (.PDF)

"This gamut map of the various color spaces shows that there are colors that can be printed on an Epson 2200 that fall outside of both the sRGB color space and the Adobe RGB color space. Cameras' capturing and printers' printing are not limited to the sRGB color space."

Image created by Jeff Schewe