Here's a breakdown:
* Yami (闇) - This is the most common and direct translation of "dark". It refers to darkness in general, such as the darkness of night.
There are other words that can be used depending on the context:
* Kurai (暗い) - This means "dark" in the sense of being dim or poorly lit.
* Kuroi (黒い) - This means "black" or "dark" in the sense of color.
The best romaji for "dark" will depend on the specific context of your sentence.