I like to check and double check color trends for your home which include wall colors all the way to accessories.  I hit many home and hardward centers to check on color samples and swatches and found that Gray is the new White.  Gray is clearly very regal and takes on a soothing tone when combined with soft colors or pale wood tones.  When adding doses of modern, consider a touch of grass green,  bold almost electric blue or a vibrant yellow.  Since many of us to tend to have some type of beige as a base - which is still a warm neutral but they are now simply incorporating that beige as an accent with the grays.  With the gray family you can add your classic beiges, nautical colors, and so called "blast from the past" earth tones.  Gray helps keep the room in balance and will take over a cool, relaxing atmosphere!  If you can't decided, try one room with the classic gray base and accessorize with trend colors in turquoise, yellows and deep reds!  Go Gray!