| Prohibition |
-(certain behaviour is prohibited, evacuate, stop) |
Warning |
-(gives warning of a hazard) |
Mandatory |
-(indicates a specific course of action is to be taken) |
Safe Condition |
-(gives information about safe conditions, doors, exits, escape routes) |
| Safety Colour |
Warning Purpose |
Example of Use |
Contrasting Colour |
Symbol Colour |
Description of Sign |
RED |
Stop
Prohibition |
Stop signs
Identification and colour of emergency shut down devices |
White |
Black |
Circular red band and cross bar, Red to be at least 35% of sign area |
RED |
Firefighting |
Showing fire hose, ladder, emergency |
White |
White |
Red rectangle or oblong, Red to be at least 50% of sign area |
YELLOW |
Caution, risk of danger |
Identification of hazards (fire, explosion, chemical, radiation, etc.)
Warning Signs
Risk of Collision |
Black |
Black |
Triangle with black band, Yellow to be at least 50% of sign area |
BLUE |
Mandatory action |
Obligation to wear PPE
Mandatory signs |
White |
White |
Circular blue disc, Blue to be at least 50% of sign area |
GREEN |
Safe condition |
Identification of showers, first aid points, etc. |
White |
White |
Green square or oblong, Green to be at least 50% of sign area |