Ebon and Pitch-dark

Ebon adjective - Of a very dark black.

Pitch-dark and ebon are semantically related in black topic. In some cases you can use "Pitch-dark" instead an adjective "Ebon", when it comes to topics like dark, very dark in color.

Pitch-dark adjective - Being without light or without much light.

Ebon and pitch-dark are semantically related in black topic. Sometimes you can use "Ebon" instead an adjective phrase "Pitch-dark", if it concerns topics such as dark, very dark in color.