Just my two cents: sRGB is awesome. Seriously, **disable** sRGB then get a few different devices, like an iPad and a LCD monitor. Then open a completely white page and see how your definition of what "white" should be will be completely confused.
I have a Surface Pro 4, which has a very good high-res screen, and the whites there are completely different from the whites on the OP3 without sRGB (supposedly the pure vivid colors), which are also completely different from an iPad Air...
Still, enable sRGB, then look at pictures. Photos. Photos of people and landscapes. It seriously looks much, MUCH more natural than with sRGB disabled.
Just consider this: maybe, just maybe, without sRGB, those colors are off. Maybe, just maybe, WITH sRGB, you're getting the real deal. I'm leaving it on, photos look awesome, and after getting used to it, everything starts to look just normal.
P.S.: Consider this:
http://www.anandtech.com/show/10445/revisiting-the-oneplus-3/2