I'm a huge fan of grays. You see it in many Swedish inspired homes and it works well with many brick or stone exteriors as an accent for shutters and such. I don't see the COLD gray of the 60's being used.. but a much warmer, river rock type of gray.

All that being said.. certain beige colors are indispensable if a home is dark naturally.
I'm a Realtor, and we stage all of our listings. My back ground is design.. so I do have many ' tried and true ' colors we use for resale. Can't tell you how often I get asked for the names of the paint colors.. !

NOTE: Which way a room/ house faces is how I typically choose where to go color wise. The beiges I use are not as gold / yellow in base tone.