Which color combination is used for Wrong Way and Do Not Enter signs?

Which color combination is used for Wrong Way and Do Not Enter signs?

• A. Red and White
• B. Blue and White
• C. Green and White
• D. Red and Black

Answer: (A)

Red with white lettering is used for these signs. The red background signals prohibition and grabs attention quickly, which is crucial for messages like “do not enter” or “wrong way.” White letters on red provide high contrast, so the message is readable from a distance and at driving speeds, helping you react in time. This color pairing is standardized to be instantly recognizable as a prohibition, no matter where you are or what language you read. Other color schemes serve different purposes—blue and white for services or information, green and white for guidance or permitted directions—so the red-and-white combination is reserved for prohibitions, making these signs unmistakable.

Red with white lettering is used for these signs. The red background signals prohibition and grabs attention quickly, which is crucial for messages like “do not enter” or “wrong way.” White letters on red provide high contrast, so the message is readable from a distance and at driving speeds, helping you react in time. This color pairing is standardized to be instantly recognizable as a prohibition, no matter where you are or what language you read. Other color schemes serve different purposes—blue and white for services or information, green and white for guidance or permitted directions—so the red-and-white combination is reserved for prohibitions, making these signs unmistakable.