Exploring the Difference Between Green and Red Exit Signs

When you think of exit signs, you probably picture a glowing green or red sign leading the way to safety. But have you ever wondered why some buildings use green exit signs while others use red? It’s not a design choice—there’s a reason behind the color difference.

Whether you’re outfitting a commercial space, upgrading emergency lighting, or just curious about what makes one exit sign different from another, understanding the difference between green and red exit signs can help you choose the right one for your space.

Why Are Some Exit Signs Green and Some Red?

LED exit signs help people find their way in an emergency. Building codes and safety standards often dictate exit sign color based on where you are. In the U.S., red is the standard in most states, while green is more common internationally. That’s because different regions follow different safety codes, and research on visibility and human perception plays a big role in determining which color gets used.

Lighting conditions also matter. Green exit signs tend to stand out better in smoky environments, while red signs are often easier to see in well-lit spaces. This is why some industries and settings lean toward one color over the other.

What About Orange Exit Signs?

Orange exit signs aren’t nearly as common, but they do exist. They’re typically found in temporary or hazardous work areas where standard green or red might not provide enough contrast. Some industrial sites also use orange exit signs to indicate caution or special conditions and ensure workers can quickly identify emergency routes in high-risk environments.

Who Regulates Exit Sign Colors

Exit sign colors are regulated by various safety organizations to ensure visibility and compliance. In the U.S., the Occupational Safety and Health Administration (OSHA) and the National Fire Protection Association (NFPA) set the rules for exit signage. However, local building codes ultimately determine which color is used. Some states and cities mandate one over the other, so it’s important to check regional requirements before deciding. Although regulations vary widely across the U.S., here are a few key standards that apply in most cases:

• NFPA 101: Requires exit signs to be continuously illuminated, with internally or externally lit options. Red and green are both acceptable.
• OSHA 1910.37: Stipulates that exit signs must be visible at all times and capable of staying lit during power outages.

Exit Sign Color Regulations Across America

While red exit signs are standard across most states in the U.S., green exit signs are currently required in Baltimore, Maryland, Salt Lake City, Utah, and Portland, Oregon. California, Illinois, and Massachusetts also have specific requirements or recommendations for green exit signs in certain situations. However, these regulations are always subject to change, so make sure you check local requirements before buying and installing exit signs.

Where Are Exit Signs Required?

Exit signs are mandatory in almost all commercial and public buildings to ensure safe evacuation during an emergency. According to NFPA and OSHA regulations, exit signs must be installed in:

• Commercial buildings (offices, retail stores, warehouses)
• Apartment complexes with interior hallways
• Hotels and hospitality buildings
• Hospitals and healthcare facilities
• Educational institutions (schools, universities)
• Theaters and entertainment venues
• Factories and industrial sites

Exit signs must be placed above doorways, at exit access points, and along escape routes so they are clearly visible from anywhere inside the building.

Trust e-conolight for Your LED Lighting Needs!

e-conolight has a wide selection of red and green LED exit signs designed for efficiency, reliability, and compliance with industry standards. Browse our collection or contact us today to find the right fit for your space!