I can help find this for you in the morning if you haven't already. If you have photoshop, you can grab the RGB value of the color and then plug it into easyrgb.com for the closest colors to that value. I use it all the time for my work. As someone else mentioned though, this can only be used as a guideline. With light casting and shadows, it would be hard to find the exact match

Ooh Darzy I like your thinking. Actually the curtains are taupe and a nearly mint green - not stripes more they blend into each other (see pic). But if I got some art picking out those 2 colours that could work. I love teal but not sure about it on this wall. Maybe coral could be nice or is that too on trend? I also have an old chair I need to get reupholstered and was struggling for ideas for that. But a floral pattern with the green and taupe from the curtains and a third colour that matches the art could work well - ideas, ideas, ideas!Thank you Houzzers I knew you'd help me to look at this differently.

Hi Zoe, I think I would have to agree with your sister! The right grey will look warm, whilst giving the room a fresh, clean feel. Farrow&Ball do some lovely ones, have a look at Elephant's Breath or Pavilion Grey. This colour scheme with wooden floors (natural or painted) would look wonderful. Injections of colour could then be added with soft furnishings. Hope this helps!

I'm starting to really like the Blue+orange combo.Not one i would instantly have thought of, but I've seen a few pics online after reading your suggestion and i find it really cheerful and soothing at the same time. Thanks for the advice!