Spiro's Profile

The wall isn't the problem. I think the colour it is now is rather nice. The TV and cabinet are the problem. The rest of your furniture is lovely and that cabinet is letting it down. I would suggest getting a TV cabinet that hides the TV or - if that would take up too much wall space - get something white and minimalist and don't put your TV in the center leaving a large area for more beautiful glass or white or natural decorative elements, even smaller artworks leaning against the wall. Something like this could work:
http://www.ikea.com/us/en/catalog/products/S69867013
Good luck!