Details please! ;)

For what purpose? Other walls, trim, ceiling, furnishings? Have a look at this -- I really like the aqua door with the walls, especially with the white. It's very refreshing.. Click on the link for more pics of rooms using the colour. http://www.thecreativityexchange.com/2016/01/benjamin-moore-edgecomb-gray-color-spotlight.html Another pic using aqua.

I think a light grey would enhance your table and chairs. You can add accents of brighter colours in small touches (kitchen herbs, fruit bowl,...) and some art on the table wall? The kitchen looks quite dark, you could consider letting more light in by leaving the blinds up and maybe change the ceiling lighting to halogen spots?

if you are looking for a crisp, clean grey, I would stay away from Farrow and Ball, their light greys all tend to have a muddy look, which is fab if you want vintage look. If you are looking for high end paint, little greene colours are definitely more clean and crisp than F&B but a lower price alternative would be Laura Ashley, I used their pale dove grey and it was very fresh and clean (really pale though, not sure if that is what you are looking for). You will probably read some bad things about LA paint but my experience of it was fine, looked like any other paint when it was done! Also, don't pay full price for it, it is always on sale.