How about a nice gold color? I'm thinking BM Concord Ivory or BM Barley. Either one would look fantastic with your furniture. Or perhaps Farrow & Ball Cream, a more muted tone. :)

Here's the "golds and yellows" thread from the Gallery section of the forum. In the first pic, notice how beautifully the red chairs work with the wall color.

Here is a link that might be useful: Golds and Yellows

I was wondering about JohnaTemps 'Wilmington Tan' is it? Hard to say without pics, but the beige and clay red sound pretty together :) Hopefully you've got a good mix of beiges for a nice neutral envelope. Accessories! and different values and textures for interest between the beiges.

I was thinking you needed to add sunshine - a nice gold - EK Mustard Seed, EK Citrine, or the new EK Ginger Ale. Also I have loved Citron paint color Lantana. These are full spectrum paints which are great!

Sounds interesting. Can you post a pic?

Yeah I agree, a gold or yellow would brighten the room up. And I think reds and golds look pretty good together. Then you could get some ivory curtains so that the light from the windows isn't covered by a heavy dark color. Maybe ivory curtains with gold and red accents, something to tie the two colors together.

Can you post a picture of the sofa?

I agree with Three-d's mustard seed suggestion, completely - it looks so nice with terra cottas/russets/reds.

You could go the other way with blue, too.

I'm thinking you should stop spending on paint (except one last time) and concentrate on changing the lighting set up to actually get better lighting. Go to a dedicated lighting store and talk to an 'expert'. Bring a picture of your room with you, including windows, so they can see what you have and can suggest new ways of lighting - or post pix here and no one will try to sell you on anything, but may have great ideas.