A picture on social media shouldn't be just a picture, it should tell a story. Something as simple as a black background, as in this case, can give meaning to a product. Black, a colour associated with power, strength, authority, elegance, formality and sophistication. So just by using the right colour, a picture can instill the sense of luxury to a product, and in turn giving its viewer the essence of premium sophistication if they choose to buy it.