A completely colorless, black-and-white image. The image is composed exclusively of shades of black, white, and grey.
It is very common for comics and doujinshi to be in greyscale.
Using color tags like black eyes or black hair is discouraged (see forum #138216 and forum #164207) when tagging greyscale images.
The following tags are aliased to this tag: black_and_white and grayscale (learn more).
This tag implicates monochrome (learn more).