What colour area rug


I need a rug to run from behind my sitting position up to where my speakers are. I wanted to have my hardwood floor visible from the front wall to where I put my feet up. My room gets a ton of natural light, my whole left wall has a window that runs along 2/3 of the wall  and my room is painted eggshell white. Currently I have a shaggy cotton rug that's black and seems to suck in a lot of light

also any ideas what material rug to get? Cotton? Wool? Shag or no shag?
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Acoustically my experience is that wool is best, at least medium weight to deliver some absorption. At all costs avoid synthetic rugs which sound harsh
D2girls
I have a question ,but it has nothing to do with your OP.
Is it possible to ask a question on AudioGon to a member without interfering in a thread ?
You seemed to know better than me , how it works here.
For example, if l want to ask you a question about , lets say , your DAC .
thanks 
This is strange but there is an ad for rugs , eSaleRugs,  at the bottom of this thread at least on my tablet give them try.  I know they can track your browsing habits but are they reading forum posts now?
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For best sound walls should be blue 🧢and the ceiling should be green 🐸. Been there, done that. I’m not hot doggin ya! 🌭Oft times no rug at all sounds better than a rug or carpet. It all depends. Proceed with caution. 
Don't get Berber. Hard to clean. A well made nylon rug will suffice. Choose a favorite color that goes well with your furniture. Keep in mind that dark colors will show every piece of lint and other things that are not noticable with lighter colors.
They seem to be using cotton now for wire insulation. That would probably sound best. Just sayin...
Agree with @folkfreak  wool is best and avoid synthetic material. Color is up to your own personal taste.
I'm guessing you should be more concerned about how the acoustics are affected by that 2/3 wall of windows.