Warehouse Safety Colour Meanings & Floor Marking Colours

Colour is a powerful safety tool on a warehouse floor. Used consistently, floor marking colours let people understand a space instantly — where to walk, where vehicles go, what's a hazard and what's off-limits. Used inconsistently, they cause confusion and risk. Here's how colour is typically applied in UK warehouses.

Common floor marking colours and meanings

• White or yellow — general aisle, traffic lane and storage demarcation.
• Pedestrian walkway colours (often green or a strong contrasting colour) — routes set aside for people, kept clearly distinct from vehicle areas.
• Red — prohibited areas, hazards, fire equipment access and keep-clear zones.
• Yellow/amber with black hatching — caution areas, edges of hazards and areas where extra care is needed.
• Blue — sometimes used for areas under specific instruction or for work-in-progress, depending on site convention.

Consistency beats a fixed rulebook

There isn't one rigid legal colour code for every line in a warehouse. The Health and Safety (Safety Signs and Signals) Regulations 1996 set conventions for safety colours, but the most important principle is that your chosen scheme is applied consistently across the whole site and is backed by a risk assessment. Everyone, including new staff and visitors, should be able to understand your floor at a glance.

Getting your colour scheme right

We help warehouses design a clear, consistent colour scheme as part of setting out the floor — segregating pedestrians and vehicles, highlighting hazards and defining storage and racking zones. The result is a floor that communicates safety instantly and supports your compliance position.

Frequently asked questions

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