I looked at the same rug in a bunch of different colors.

https://www.rugsusa.com/rugsusa/rugs/rugs-usa-tribal-medallion/Rust/200KHMC04A-P.html

I’d break up the blue and grey by introducing a warm beige and some natural elements. A textured, tone on tone beige rug would create a soft and relaxed feel in room. New Zealand wool rugs are not that expensive and will last forever

Then you could rethink your accent cushions

Some options

Room still looks cold, may be some warmness with rug?

I’ve been thinking about this rug. What do you think?

Here we are with your rug. Good with your floor. :-)). If you go with it, then bring something terracotta warm in accessories.

Whatever rug you select it should run right to left or parallel to the windows

Below we've included a few images from our design portfolio which might aid in your rug choice.

New Build · More Info

New Build · More Info

I like the rug you're considering. It brings some much needed warmth into the space. Something even a bit deeper in color could work as well to ground the space.