Black adjective - Having the color of soot or coal.
Usage example: a little black dress blends into the night very well
Dark is a synonym for black in unlit topic. In some cases you can use "Dark" instead the word "Black" as an adjective or a noun, when it comes to topics like colour, light, darkness, dim. popular alternative
Dark adjective - Being without light or without much light.
Usage example: a dark alley that most people wisely avoided
Black is a synonym for dark in light topic. You can use "Black" instead the word "Dark" as an adjective or a noun, if it concerns topics such as hair, shameful, gloomy, darkness. popular alternative
Both words in one sentence
- Nikita had naturally black/dark hair and loves wearing black clothing.
Source: Woman in Black
- All the Japanese characters have black/dark brown hair and brown eyes, the ones who don't have clearly colored their hair since their eyebrows are still black.
- Dark Is Evil: The Ganglion wear very dark clothing, their technology is either black or dark purple, and even the interiors are very dark and unlit.
Google Ngram Viewer shows how "black" and "dark" have occurred on timeline