Monochrome
From Tardis Wiki, the free Doctor Who reference
Monochrome was the term relating to a single colour or hue.
Haemovariforms' vision was monochromatic. (TV: Tooth and Claw)
The Doctor's first two incarnations had monochromatic vision, the War Doctor mused over this after noticing the new colour balance in his eyes shortly after his regeneration. (PROSE: The Day of the Doctor)