Safety Colors

Fire protection equipment, containers of flammable liquids, lights at barricades and obstructions, stop bars and switches on machinery, fire alarm boxes, fire exit signs, sprinkler piping

Caution, physical hazard, construction equipment, handrails, Guardrails, material Handling Equipment, piping systems containing dangerous materials, waste containers, exposed, unguarded edges

Dangerous parts of machinery, inside of movable guards, safety starting buttons, exposed parts

Caution, equipment under repair. Warnings should be located at the
starting point or power source of machinery.

Safety, first aid equipment, safety bulletin boards, gas, masks, stretchers, safety deluge showers.

Traffic and housekeeping markings, dead ends of aisles or passageways, stairways, directional signs, and refuse cans.

Designates radiation hazards. Often used in combination with yellow on tags, labels, signs, and floor markers.