Lab Gamut

http://www.brucelindbloom.com/index.html?Home.html

 Photos courtesy and copyright © Bruce Justin Lindbloom

Gamut volume comparison
                    Bruce         BabelColor
Apple RGB          798,403         894,338
sRGB               832,870         934,328
Adobe RGB (1998)   1,208,631       1,346,825
Lab                2,381,085       NA
ProPhoto           2,879,568       2,653,173

Some of the possible Lab values are illustrated as above. The white gamut boundary is the sRGB color space and it is shown for comparison purpose. All Lab values were generated with BabelColor PatchTool.