I would choose something very close to that deep red/rust/plum (can't quite work out what it is) in the granite. It looks as if that colour is also in the tea towel on the right (hanging on the handle in front of the oven). Everything else is so light I think the room would take it well and it would give it wow factor. You need a warm colour, as someone else has said, to tone with the cream of the cabinets and the granite.

So we have decided on Wimborne White on all walls. We plan to add 2 or 3 very large pictures on the radiator wall. If we still feel this is plain we can repaint either this wall or the one with the shelves. Header13 we really like blue and have used it in our south facing bedroom. Carolina I'm afraid to say no. Picking the floor seems to be by far the hardest decision. We really cant decide on light vs (warm) medium grey. We have so many samples and I think it is just making it worse. We feel light should help keep the room bright but could make it all too plain and samey? Darker may give better contrast and more interesting? Lighting in the kitchen is currently really poor (we took the lights down for plastering as they are being replaced) but here is some pictures showing examples of flooring shades we are considering. Most of the colours seem to be falling in these two camps. White oak vs a grey/smoke oak.

I would have poo poo’d this idea before as I’d wonder what the point was, but make your self a mood board using the colours roughly in the same ratios. Are you planning on having some artwork as this may be the lynchpin that helps it hang all together. Pulling colours through from that will help the scheme. Tonal can be soft and soothing but needs layering up with texture to create a cohesive scheme. Alternatively pops of bright colour can look amazing and your kitchen is lovely and bright with good bones. What is the rest of your house like, and what is your style?

Tamp75, I’ve never really noticed the splash back before. It is a plain clear glass (or at least is supposed to be) but it does look a little aqua up close. Thank you all for the great suggestions, I like that they are quite diverse. I’m going to get testers of each and paint them onto lining paper. I may repost for opinions once I have the swatches.