If I removed the rug the color will age and change darker but will the floor where the rug was blend with the outer Perimeter?
I would go for a rich wine (claret to be exact) colour rug. Then scatter cushions with different patterns of the white of your lounge and the rug colour. Maybe a lamp or two in the claret as well?
The wood will darken when it is exposed to light. In time it will blend in with the rest of the floor.
Is there a lot of sunlight coming into the room? I had that happen at my last house and its because we had a lot of windows with a light floor. Take up the rug if its not that bad and let them darken to the rest of the floor. If the floors are real, not laminate, then you might need to reseal the floor with a polyurethane to keep from bleaching. Check with a flooring company and see if there is anything else you can do.
