In interiors, the most popular color combination with grey (and my personal favorite) seems to be the colors yellow or acid green. From the different fabrics, which include IKats, Damask, & Wovens, down to the tassels, tapes & brush fringes, the color grey is hugely popular.
Grey can sometimes appear as a drearier color, however, when combined with brighter colors it can, not only alter the mood of a space but can also enhance those bright colors especially when those colors are used in dramatic ways, like as paint on the walls of a big room.
The color grey comes in many variations. On a color wheel, you can pick from warm greys, that have more of a red tone, or cool greys that have more of a blue tone. Using a light grey hue on the main walls in a space with a dark grey accent wall gives the room a wonderfully dramatic effect along with a great depth perception.