well, I'd see what Anthropologie has..with a touch of raspberry red but also other colors. Depending on what other colors are in the room of course, and what do you like. Go soft and textured, that's how you'll tone down the red..the fabric itself will be "a softener", not only color per se smth like these.. that's less of toning down..)) but will command attention, thus accent red but distract at the same time there are tons of other sources of course, anthropologie is just easier to link to, because they have finite choice..)) but many, many cool pillows everywhere. Check your local stores..sites like Gilt, ruelala, OneKingsLane, Amara, you name it.. you can pick solids..something soft too..knit, faux fur? I always love linen/cotton with embroidery..some velvet.. rug is harder. We need to see more of a room..and to know your budget. Well it's nice to know the budget with pillows too of couse but pillows are cheaper and easier. Sales, promotions, sites like Ruelala and Gilt that are based on concept of flash sales..luck at local TJ Maxx..etcetera.. (most of Anthro pillows will stand up to high traffic..can be hit or miss with the pom-poms..))

Paint should be the last thing that you choose, since there is such a large variety of colors. My decorator told me that it's easiest to choose colored items in this order. wall art rugs or carpet upholstered furniture decor items like pillows, throws paint

I would recommend a sofa table to anchor floating sofa. The sofa table would also provide a nice view and presentation when entering the room. From an Eastern Feng Shui perspective, I believe the wall where two chairs are would be the sofa wall. However, where your sofa is now is fine and works for the space. But since the other wall is most likely sofa wall, having two chairs there may feel a bit off. I think a smaller scaled sofa/loveseat or even a chaise might work better on that wall. I just mention this in case you have been having issues with trying to balance that wall. If it is not an issue, disregard these thoughts. There are mounts that lower the tv for comfortable viewing, and this is a very good one. There is also a motorized option. https://www.dynamicmounting.com/product/down-and-out-manual-mount/ Another option could be putting tv on long, low console, to right of fireplace and you could alternatively hang some art or a mirror over fireplace.

I find the chairs are a bit heavy/dated compared to your other choices and thought you might like these two, as an example. They feel more modern and the first is a recliner 😀 Instead of navy, cream would be very complimentary but you may worry about keeping clean so could look for slipcovered chairs with an ottoman instead of a recliner, opening up more options I’d stick to a solid fabric on chairs and for interest, add lots of cushions and you won’t be limited trying to compliment a patterned fabric. For sure white linen-like drapes and IKea has nice ones at good prices. Thought the room below (imagine seating color in reverse) may help you with envisioning your room - white walls and curtains, accent cushions that compliment rug. May feel very similar based on what you provided. I think it’s a lovely room