WHAT NEUTRAL GRAY PAINT COLORS DO INTERIOR DESIGNERS USE?

I used Benjamin Moore Nimbus in my clients family room. It is one of my "go to" colors when I am looking for a neutral gray paint.
The above photos are of the same room but as you can see, light definitely effects how paint looks!
I ALWAYS test it on every wall before I decide on the color.
There are so many different shades of gray that it makes it difficult to choose sometimes.
They all have different undertones (ie, blue gray, brown gray, green gray, purple gray etc.). Some are more neutral than others.
Click here to see other colors that other designers used in there work.