Yep, some colour can be seen in Orion Nebula,
but an 8" and from Sydney

That's 2 things that go against it.
I use a 12" in very dark country sky to see the colour of Orion neb, but the clubs 8" can't see it. Even with our dark sky!
Your eyes must be very sensitive!!!!!!
As far as colour, some people say they see it in pale pink, some say pale green.
I personally (in dark skies) see both colours in Orion neb. Not bright, but very pale pastel colours.