Aluminum Warning Signs

Signs: Warning Symbols & Colors Explained

According to the most recent ANSI/OSHA requirements, which use nationally and internationally recognized symbols, "WARNING" signifies a situation which could cause serious injury or death. Warning signs are orange or red, black and white in color and may feature the safety alert symbol, which is a yellow triangle that contains an exclamation point. If your workplace has potentially dangerous areas that require warning signs, we offer stock and custom warning signs. Ensure that your staff and visitors are aware of locations or substances that could cause injuries or even deaths on the job site. Also see our full safety inventory including other essential signage like danger, caution and notice signs. offers free shipping on orders over $49.