I'd use a coral or darker coral, even rusty color. Funny because I'm helping someone right who has painted her new kitchen/family room addition in Gray Wisp and finds the room too cold and is looking for ways to warm it up too. We are starting by looking at area rugs that are primarily warmer colors (reds, rusts, oranges) but that have a small amount of the blue. Depending on your bedroom style, I could envision an old or vintage-looking oriental rug with a lot of dark red and just a touch of light blue. Of course you didn't ask about rugs but you could do the same with bedding!

I would change out the pillows on the sofa (or at least add a pillow) that has a print with some of the blue you want to incorporate into the room. I would do a lighter gray on the walls in the living room with a darker version of the blue on the accent wall, then I'd carry the lighter blue into the kitchen. I love yellow but I would only use it for accents on fabrics or art because its hard to find a yellow wall color like the one in your pillows that works well on walls. It is usually either too stark or too bright.

Hi Laura- I am not sure why you are showing us the bird pictures. Is it because you want us to see the shades of red you like? Are those the pictures you want on the wall? I too favor light curtains, especially as your room is painted that darker gray and the sofa is that same gray. If you want red as an accent color, you can add a vertical red band to the edge of the curtain panel. See below. You can buy a light-colored curtain and have a red band sewn on by the person who does your tailoring. As for art work above the sofa, the horizontal dimension should be 75% of the width of your sofa. You could get one piece that is that width, or get two pieces whose combined width including the separation between them adds up to that. If red is your accent, have some red in your art, and have some red in your throw pillows. But don't have them necessarily solid red. A foolish consistency is the hobgoblin of little minds. You can use a print or stripe or textural weave with red and gray (is gray the color of your sofa? or whatever the color of your sofas, that color plus red). I would not have the coffee and side tables from the same set, that is too matchy-matchy. If your end tables are round, then the coffee table can be square. If your coffee table is square, then your end tables should be round. In any event, you do not need or have room for end tables on both end of that sectional. The side near the door has no room or need for an end table, people at that end can use the coffee table. You can use a smaller end table at the end with the lounger, and please carefully measure that space (maybe move the sectional a bit closer to the door?) before you purchase an end table. Another thing to think about (and what do you think Houzzers?) since that far corner is so tight, instead of having that floor lamp there, what about a wall mounted sconce? You would get two, one for either end of the sofa. They come in many styles, and some even are adjustable to slide up and down. You could get one that is a plug-in so that you don't have to pay an electrician. You can also get a plug in hanging ceiling fixture. I love this contemporary fixture by Torre and Tagus which is pricey, but you probably can find a less expensive version that is plug in or can be converted to plug in. I can't tell how dark a gray your walls really are. I would favor a lighter shade of gray for the walls. If red is your accent color, then I would consider a red ottoman as shown in the photo above which is also shown with a sectional. You can have a lovely large wood tray to put on top for serving, and the ottoman can serve as extra seating, and you can even find an ottoman with storage inside. As for rugs, it depends what your tastes are. If you want to go contemporary, you can get a swirl design in red, black and white and gray. Or a handmade Oriental in either a Persian or nomadic style.

Bless your heart @M Miller. I did actually add to the discussion. I read what the OP wrote about not wanting to change the wall color, I liked the options Celerie provided and I rolled my eyes at the comment from some one that said unless they changed the color of the walls that room would forever be miserable, like some Grimm Brothers old crow casting a curse on the homeowner. But I’m one of the lucky ones that believes the age of a house has nothing to do with what colors you can or can’t use (unless the OP mentioned this was a period appropriate B&B? An historic house museum?), everyone sees color differently meaning not everyone thinks dark gray is cold or that a cold gray room isn’t desirable, or that a color found in nature like a storm cloud or angry sea is somehow dated or overused or that it limits how you should use it or where or if you’re even allowed to like it.