Which color is not allowed for taillights?

Which color is not allowed for taillights?

• A. Blue
• B. Red
• C. White
• D. Amber

Answer: (A)

Taillights are required to use a color that clearly marks the rear of the vehicle, and red is the standard color for that purpose because it signals presence and braking to drivers behind you. Blue is reserved for emergency and law enforcement lights, so using blue at the rear could be mistaken for an emergency vehicle and is illegal for civilian riders. Amber is often used for turn signals or certain marker lights, and white is typically used for reverse lights or license-plate illumination, not as the main taillight color. So blue taillights aren’t allowed, while red is standard and other colors have specific signaling roles.

Taillights are required to use a color that clearly marks the rear of the vehicle, and red is the standard color for that purpose because it signals presence and braking to drivers behind you. Blue is reserved for emergency and law enforcement lights, so using blue at the rear could be mistaken for an emergency vehicle and is illegal for civilian riders. Amber is often used for turn signals or certain marker lights, and white is typically used for reverse lights or license-plate illumination, not as the main taillight color. So blue taillights aren’t allowed, while red is standard and other colors have specific signaling roles.