achromatic color (noun)

1. The author used achromatic color to convey a sense of despair and emptiness in the protagonist's world.

2. In the magical kingdom, the evil witch cast spells that turned everything into achromatic colors, draining the beauty from the land.

3. The film artistically employed achromatic color palettes to create a gloomy and unsettling atmosphere for the suspenseful scenes.

4. The artist skillfully used achromatic color to evoke a sense of minimalism and simplicity in their abstract painting.