You probably notice that safety signs are everywhere, on walls, doors, and at exits, and that they all follow the same set of guidelines: in the UK (and across Europe), those signs use standard colours and symbols, so that everyone can understand the potential hazards immediately. If you manage a facility, school, or business, knowing what those colours mean can save time and maybe even lives. 

 

Four Types of Safety Signs (and What Their Colours Mean) 

Red Safety Signs – Prohibition or Fire Safety 
Red safety signs indicate prohibition or identify fire equipment. These signs are critical for preventing actions that could lead to danger and for locating essential fire-fighting equipment. Examples include "No Smoking" and "Fire Extinguisher" signs. The colour red is chosen for its ability to draw attention and convey urgency, making it ideal for situations where immediate compliance is necessary. 

Yellow Safety Signs – Warning 
Yellow signs serve as warnings to alert individuals to potential hazards. These signs are often used to indicate caution, such as "Caution: Wet Floor" or "Mind the Step". The yellow colour is associated with caution and is easily noticeable, helping to prevent accidents by warning individuals of potential dangers. 

Blue Safety Signs – Mandatory Instructions 
Blue safety signs communicate mandatory instructions that must be followed to ensure safety. These signs are used to enforce actions such as "Wear Eye Protection" or "Keep Locked Shut". The blue colour signifies a requirement, making it clear that the instructions are not optional but necessary for safety. 

Green Safety Signs – Emergency Escape or First Aid 
Green signs point the way to safety. Whether it’s a "Fire Exit" or a "First Aid Station". Green is used to guide people toward emergency routes, medical assistance, or safe areas.  

 

Why Symbols and Pictograms Matter 

Words alone don’t always work, especially when people speak many different languages or when visibility is poor. That’s where pictograms or symbols shine. They’re easy to understand, fast to spot, and consistent. If there is anything in the way of the writing, or if the person is unable to read the language, they’ll still recognise the sign they see in front of them. 

 

The Legal Side of Signage 

It’s not optional. The Health and Safety (Safety Signs and Signals) Regulations 1996 say that in workplaces, where risks aren’t easily removed, you need proper signs. Missed signage, or ones that are damaged or unclear, aren’t just dangerous; they could cause serious injuries or worse to occur for those who aren’t aware. 

 

Wrapping Up 

Take the time to review the safety signage across your premises. Look closely: are any signs worn, faded, or unclear? Are they still appropriate for the hazards they’re meant to highlight? Even small oversights, like a missing symbol or the wrong colour, can lead to confusion or risk in an emergency. 

Maintaining clear, compliant signage isn’t just about ticking regulatory boxes. It’s about creating a safer environment for staff, visitors, and anyone who steps onto your site. 

If you need to replace outdated signs or expand your current setup, First Safety Signs offers a wide selection designed to meet UK safety standards with clarity and durability in mind. Contact Us Today.