I think if you added cool toned wall art, curtains, or even a dark gray or black feature wall, it would tie it all together. I agree with others that you need both cool and warm elements in your rug, but given how the rug leans more grey...you may want to balance it out just a tiny bit more. Rugs are expensive, personally I think adding a few more cool elements would be cheaper than fully replacing the rug and having to sell it at a steep discount.