Every so often a client will aske me if Grey is out of fashion yet. The answer is no, grey is a neutral colour. Grey has a steadying effect on any scheme. Grey is never a perfect mix of black and white it often has elements of other colours in the mix.
When grey comes into contact with other colours it has a steadying effect, toning down the stronger and brighter colours and illuminating the softer colours.
You can be colourful and playful if you want with your accessories, but grey is a wonderful backdrop to any interior.