just sharing the colors of the furniture the grey is going to be the body of the sofa and back cushions...the purple is the color of two small cushions which will be on the sofa.. what curtains do I think will go with these colors

If you have a small living room go for white/ cream/ beige curtains to make it light and bright. If you have a large living room go for a darker shade like a mocha grey/ brown for curtains to make it warm and cozy.

I would suggest u to go with white sheer and light grey curtains only. If u want want to play with bright colours then it is safest if u add them in form of accessories or decors, reason one being the space is small n it’ll look more crowded then. It’s better if u avoid orange n yellow in this bedroom at least. If u can give a better picture of the accent wall colour here it would be better. Then u could go with a darker shade of it to form the colour scheme. White+Grey+Purplish brown. That’s it.

Yes your right Abhisek it does look a little dull coz the walls are bare and nothing is put together. Once you put up the curtains and add some cushions and a coffee table and place some of ur personal decorative things everything will look put together. Looking at the pic I feel like u want a neutral colour palette so depending on that yes u can go for cream or very light hues of brown like beige or even some pastel colours will look very nice. U don’t have to match everything exactly same colour but try and stay in the same colour with different shades. You can also add one piece of contrast to add that pop of colour so it doesn’t look too pale. Maybe u can try and rearrange ur furniture if possible coz ur sofa seems to be quite far from the tv unit....it’s not necessary to leave the entire passage going to the balcony open...I think u can pull ur sofa a bit closer. I hope am making some sense. 😄 try and add a patterned curtain since rest everything is plain. Attaching a pic for ur reference hope it helps.