You have a nice geometric, somewhat masculine look going here. I would play that up. I don't think you need to change the wall or carpet color as they seem to be a nice neutral background. Are they cream? is the purple more plum? and is the blue more of a steel blue/gray? The furniture is chocolate brown? I love the striped pillow on the chair. I would layer a wool steel blue/gray area rug and then play up the blue/plum in the pillows. A wool plaid or blue gray herringbone in a couple of throw pillows (replace a few of the solid color pillows) could help to pull it all together. Kind of like the colors in the picture of this bag. Adding brown leather cording would be a great compliment on the pillows. (Not sure the area rug in front of the TV is adding anything)

Hi. Since you have such contemporary lines with the linear use of windows, I think your look is contemporary, but with so many windows, you still want a connection to the outdoors. My suggestion depends on whether you want to blend in with your surroundings, or make a statement. If you want to make a statement, I'd stay with a stark white, to contrast the sharp blue. Then use bluestone cut in a random pattern, to play off the blue roof, but keep an organic feel with the movement of the stone. If you want to blend in more with your area, then go with a mid-range gray color on the walls. It will tone down the contrast, and still stay contemporary. Not a dark charcoal, but not a dove gray. I attached a Gibraltar Gray from Lowes, or you might like a little lighter gray. Benjamin Moore has a bit softer gray: Cape May Cobblestone. Good luck! Please post your choices.

thanks all for replies. I want to highlight the wall as rest walls are almost white and need some change. there are white tiles on the floor, red sofa set and mostly brown furniture. I have planned to give a grey texture on the front wall (hoping it will look nice with red sofa). the wall beneath the light( in the photo) will continue to be white. though I would like to highlight it in some way as I have kept a box console in the photo above which a round mirror will be hanged. pls suggest

two basic issues your room floor is dull is that floor to floor carpet if yes then add a a smaller area rug under your table to get splash of colour, alternatively if you dont want to do that then add some colorful wallpaper behind the sofa. Where you have the table lamp add something taller like a modern floor lamp or a tall spread out palm plant. Take the table lamp and add to a side table if you have one. The second biggest issue is that you have a lovely modern sectional sofa and then you have paired it with a very traditional and very high coffee table that looks like it has marble inlay work done (cant make out clearly). This is not a good pairing. The coffee table is the right size but get something modern and a lot lower, a general guide to this would be one inch to 2 inches lower than the seating height of the sofa. As someone else mentioned an Ottoman that can serve as a coffee table in an alternate colour will also work. Paintings and wall art is something you can experiment with but unless you do something about the coffee table the room will continue to look odd in my opinion. Also some more shots of the room will help us get perspective.