I love the neutrality of gray--and mixing several of shades together  I paint a lot of my originals on anodized aluminum, which has a light gray sheen to it.  It's spectacular! Color pops off of it beautifully.  It's a great backdrop.  Gray is peaceful and offers an unmatched level of serenity and can turn energy into stillness. Such a beautiful neutral.  Scroll down to the bottom of this page and click on my "Design with" series to see what gray can do for you.