Some people might think black abstract paintings are dark or ominous. While this may be the case for some artworks, I think this description does not apply to most. Black-themed paintings could convey a very clean and calming vibe.
The “darkness” or “blackness” of the painting may also convey actual darkness or night time.
In most of my black abstract art work, I use the black tones to create a background scene that emphasizes the main subject of the painting.
In other cases, I may use the black tones for the main subject of a painting to convey “emptiness”, “void”, or to generate a simple yet effective contrast. Ultimately, I think black abstract paintings can be interpreted in many ways and can be appreciated for their beauty and simplicity.