monochrome
adj.using only one color or shades of just one color. You often use this to describe black-and-white photos or simple designs.
adj.consisting of or displayed in a single color or varying tones of a single hue. Often used to describe photography, cinematography, or digital displays that lack chromatic variety.
“The artist prefers to paint in monochrome tones.”
“The photographer chose a monochrome filter to emphasize the dramatic shadows and textures of the old building.”
“While modern audiences are accustomed to vibrant palettes, the director opted for a monochrome aesthetic to evoke the stark atmosphere of mid-century film noir.”
Typically used as an attributive adjective before a noun; can also function as a noun referring to a single-color image.
From Ancient Greek μονόχρωμος (monókhrōmos), from μόνος (mónos, “one”) + χρῶμα (khrôma, “color”); mono- + -chrome.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.