HI - how about a yellow - like teh one on your chairs? I always think that goes with grey. And red does too. here are a few pics i found on houzz that may help.. GOOD LUCK!

Before deciding on a colour, don't forget to consider your kitchen cabinetry, benchtop, splashback, etc (and dining furniture)... for example, if you have a classic hamptons (farmer style) kitchen (and furniture) then don't discount a warm white for the walls... it won't look clinical as the warmth will come from the kitchen cabinetry, etc and dining furniture, e.g. But if you have a "hamptons inspired" look with a slightly more contemporary kitchen cabinetry (and furniture), then in my opinion (all nice options above but a bit too beige'ish for me) so I would suggest a light shade of a warm grey e.g. Whichever way you decide to go, try to narrow it down to 2-3 colours, get the small pot samples and paint each one on all the applicable walls as they will all look different at different angles depending on how they reflect natural daylight and the lights at night time... then you may be able to make a clearer decision. Good luck! :)

I think you need shelving either side of fire. Just something simple to add interest. To many surfaces, I think, already for adding tiles. If you want to put something on the fire place wall, then the clock needs to find another home. And the tile surface could be similar to the hearth. Either dark wood or black, floating shelves. Then your favourite things can be displayed. This looks like the same room you posted a while ago. The single wing back chairs would look good in this room again. Facing the fire. Then a light coloured rug to take away from all the black. Gold accessories to match your side tables. And if the plants are artificial, I would remove for something larger and real. For your window near the fire, A solid window treatment, eg: roller blind or shutters, would work. But if you don't need anything on that window, then maybe just a pelmet to finish it off.

This is a very personal choice as dreamer mentioned. You can order tile samples from tile cloud or TileMall for $15 for 5. Pick some options you like and put up in the kitchen next to the other elements. You will soon know which one you love the most 👍🏻