BIOHAZARD SIGN Logo
A high-contrast warning sign: a bright yellow, rounded equilateral triangle with a black, three-armed trefoil (biohazard) symbol centered inside. The triangle has a thin black inner border and a slightly thicker white outer stroke separatin...
Logo
About BIOHAZARD SIGN
A high-contrast warning sign: a bright yellow, rounded equilateral triangle with a black, three-armed trefoil (biohazard) symbol centered inside. The triangle has a thin black inner border and a slightly thicker white outer stroke separating it from a black background.
The biohazard mark consists of three identical curved blades arranged symmetrically around a small central circle, creating a circular negative space pattern. Overall the image reads as a standardized hazard pictogram used to indicate biological danger or contamination.
What's in it: biohazard symbol (trefoil)
Shapes: rounded equilateral triangle trefoil (three curved blades) central circle border ring
Style: warning sign pictogram flat high-contrast symbolic
Biological hazard / contamination warning (biohazard warning sign)
Colors
Extracted from the image. How we pick the colors →
Frequently asked
What does this sign mean?
It indicates a biological hazard — presence of potentially harmful biological materials or contamination.
Where is this sign used?
Commonly used in laboratories, medical facilities, on biohazard waste containers, and in areas with infectious agents.
Is this an official safety symbol?
Yes — it is a standardized hazard pictogram used internationally to warn of biological risks.
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