Check color cut black and yellow. Use for the area or place where there might be a danger temporarily or permanently, such as fall. Stumbling around the stage stairs or holes, etc.
Safety marks and colors black and yellow for the area or where there may be temporary or permanent harm as a result of a fall or stumble place a ladder on potholes.
Safety signs and the color black, yellow, used for cutting area or place may be temporary or permanent hazards such as dropped, stumbling. The place is a staircase, or potholes.