Recently purchased a cheap (€5.5) 3m HDMI cable for my PC to be able to move my monitor further.
For some reason the screen had to much green, I thought that the cheap HDMI cable was the cause, so I tried to adjust the green channel with AMD VISION Engine Control Center aka CCC, at some degree i was able to correct it but wasn't perfect. I blamed the cheap cable .. there are cables out there for 4x+ the price, but to be honest I wont pay that much for a cable and I'm not sure if worth it, maybe if you're using it for audio too there are some major differences. Anyway, I google'd a bit and found out that it can be solved with just a few clicks! You just need to change the Pixel Format in CCC:
My Digital Flat-Panels → Pixel Format: the default format for me was YCbCr 4:4:4 I changed it to RGB 4:4:4 (Full RGB) and it was perfect.
I hope this helps you out.