Question: is 99 srgb good enough?
Answer: MMD suggests that “a professional display ought to be able to exactly reproduce at least 90% (preferably more) of the colours in this space.” Another common standard of color space is the NTSC gamut – 72% NTSC = 99% sRGB, the NTSC area based on CIE1976 and the sRGB area based on CIE1931.