What is the inability to distinguish one color from another known as?

The inability to distinguish one color from another is known as color blindness. This condition affects a person's ability to perceive colors accurately, often leading to confusion between specific colors, such as red and green or blue and yellow. Color blindness is typically caused by genetic factors that affect the cones in the retina responsible for color vision. Understanding color perception is important, especially for drivers, as recognizing traffic signals, signs, and other color-coded information is vital for safe driving.

Narrow vision refers to a limited field of vision, which does not directly relate to color perception. Night blindness is an inability to see well in low light conditions and is not associated with color discrimination. Peripheral vision is the ability to see objects outside of your direct line of sight, again unrelated to color blindness. These distinctions highlight why color blindness specifically addresses the challenge of distinguishing colors.