"painted in black" is correct and usable in written English.
You might use it in a sentence like this: The old mansion was painted in black, giving it an ominous, otherworldly feeling.
That Warhol influenced a lot of artists, and that Picasso painted in black and white.
Bark cloth robes are printed or painted in black on a rust-red ground colour.
"It is a systematic bias against the country, a willingness to see everything painted in black.
Painted in black on a dark brown background, the initials J.v.d.f.f
The words "Death Is the Surest Thing in Life" are painted in black on a nearby wall.
Abstract plank masks painted in black, white, and red with high-contrast geometric designs represent cultural order.
The club's dilemma has often been painted in black-and-white terms.
The stage is painted in black-and-white geometric patterns, and between the feet of her fellow string players a viola player crawls around.
The adjacent ceiling is covered with wooden hatches painted in black-and-white stripes, a favorite Cross combination, harkening back to 1890s Paris; they drop open for the obligatory meter reading.
Just a large piece of canvas with the number 51 spray-painted in black on it.
In preparation for Callaghan's visit the "Free Derry" wall was painted white and the "You are now entering Free Derry" sign was professionally re-painted in black lettering.
