ENGLISH
Black and white is often attributed to sadness, melancholy, and even death. I won't say whether it's true or not, but it depends on the moment and emotional state you're in. I didn't take these photos thinking they would look "dark," but upon seeing them, they have a touch of melancholy.
ESPAÑOL
El blanco y negro suele ser atribuido a la tristeza, melancolía, hasta a la muerte. No diré que es cierto o que no lo es, pero definitivamente del momento y del estado emocional que tengas. Estas fotos no las tomé pensando en que se vieran “oscuras”, pero al verlas, defintivamente tienen un toque de melancolía.
Although it is said that black and white is more related to the feelings you mention, this may not always be the case because I think it depends on the circumstances.
You are right