In road-vehicle contexts, side marker lamps are typically amber (yellow-orange). Regulations vary by domain and country, so it’s important to check the local rules that apply to your situation.
Vehicle side markers for road use
The following guidance outlines the common color scheme used for side markers on road vehicles in many jurisdictions. Amber side marker lamps are standard, while front clearance lights are usually white and rear clearance lights are red. Where required, side reflectors are typically amber as well.
- Side marker lamps: amber (yellow-orange) for visibility to the sides of the vehicle.
- Front clearance/marker lamps: white.
- Rear clearance/marker lamps: red.
- Side reflectors (when mandated): amber.
In practice, always ensure your vehicle’s side markers comply with local regulations and that all lighting and reflectors are functioning correctly. Replace any nonworking markers promptly.
Maritime lateral markers
For ships and coastal navigation, color coding of side markers indicates which side of the channel to keep on. In the United States and many other flag states, the standard is red on the port (left) side and green on the starboard (right) side.
- Port side markers: red.
- Starboard side markers: green.
- Day marks and lights may use additional shapes or colors to indicate safe navigation, but red/green sides are the core pattern at night.
Conclusion: When navigating, red markers on the port side and green markers on the starboard side guide vessels safely through channels and harbors.
International variations and exceptions
Color conventions can vary by country and regional regulations, especially for older vessels or non-standard vessels. Always consult local nautical charts, regulations, and authorities when operating in unfamiliar waters.
Other contexts where side markers appear
Beyond road vehicles and maritime navigation, other industries may use different color conventions or rely on reflectors rather than lights. Always verify the applicable standards for the specific domain you’re working in, whether it’s regulatory compliance, manufacturing, or maintenance.
Summary
Across common contexts, the default color for side markers on road vehicles is amber, with white front and red rear lights and amber reflectors where required. In maritime navigation, side markers use red on the left (port) and green on the right (starboard). Always check your local regulations and the specific equipment manuals to ensure compliance and safety.
What color should sidelights be?
If your house and entryway are large, painting the door and sidelights the same color will work. If your house is smaller and can't handle a massive looking doorway, then keeping your door simple with the sidelights painted white or the trim color, is probably your best bet.
What color should your side marker be?
(2) At least one amber side-marker lamp on each side near the front and at least one red side-marker lamp on each side near the rear.
What color should the sidelights be on cars?
Front Sidelights: Usually white or amber, these lights are located near the vehicle's headlights. They help other drivers spot your car, especially when it's parked or in situations with poor visibility (e.g., in foggy or low-light conditions).
Do side markers need to be orange?
As you realize, front side marker lamps and turn signal lamps must be amber in color. Rear side marker lamps must be red in color. Rear turn signal lamps must be either red or amber in color. These color requirements have been established by Tables I and III of Federal Motor Vehicle Safety Standard No.


