Another tip for buying accessories (if trying to play it safe)..... you have probably noticed that in M&S your chosen accent colour has lots of similar items in matching shades but but they are different from the shades chosen by buyers in Next. This is a retail trick to make their store look more cohesive and you can take advantage for your own home.

What colors do you like? Bring something from your closet, or decor from another room and set it in the living room. Do you like the color in the living room? If not, try other colors you know you like from different areas of the house in the living room as ideas for accent colors.

I think the grey with the wooden tops looks nice. Breaks up too much timber effect in the room bearing in mind that you also have wooden flooring.

You haven’t said what type of wood your coffee and lamp tables are, but it can be difficult to match woods. if the existing cabinet works well from a practical viewpoint you could always consider having it professionally spray painted with a durable 3 part lacquer. If your walls are neutral you could have the cabinet done in the same colour. It is perfectly acceptable to mix wood and painted wood. i had the cabinet in this photograph made for a client in MDF before it was spray painted. Obviously a different style to yours, but it will give you an idea of the concept.