モノクロ

ものくろ
noun, na-adjective
monochrome, black and white
color
1. monochrome, black and white
An image, film, or design rendered only in shades of black and white, without color. Abbreviation of モノクローム.
I like black-and-white photos.
I shot it in black and white.
Old black-and-white movies have a unique charm.

モノクロ is an abbreviation of モノクローム (monochrome). It is the standard casual term for black-and-white imagery.

Common collocations

モノクロ VS 白黒(しろくろ):
白黒(しろくろ) is the native Japanese term for black and white. Both are commonly used, but モノクロ sounds more artistic or technical, while 白黒(しろくろ) is more colloquial.