A couple of years ago (2019) I began painting originals for clients matte black acrylic paint on matte black metal and canvas. I actually love the affect. I also love black. It "still"s energy for me. Black on black lends itself to reflection of light and is associated with water elements evoking power, mastery and calm. And a grounding effect when used sparingly.
When I was healing from memories of childhood abuse, it was also a trigger color for me. A color psychologist wrote, "It awakens dark and depressing thoughts, but it means no harm. It yearns to be accepted but has made peace with its unfavorable reputation. Far more than a foreboding color, black is also powerful, striking, and a source of protection." So I decided to paint through it and embrace it. And being a very sensitive person, use its protection from negative energies. It has become one of my dearest color friends.