LEGO introduced its familiar logo in a red square in 1973.
The design gave the brand a strong, consistent visual identity across packaging, catalogs, stores, and advertising. Its bold red background, white lettering, yellow edging, and black outline made the mark easy to recognize and reproduce at different sizes.
LEGO had used earlier logos before 1973, and the lettering itself had developed through several revisions. The red-square version became especially important as the company expanded internationally and needed one recognizable symbol across many markets.
The logo is sometimes confused with the appearance of LEGO packaging from a particular theme or decade. Product graphics have changed frequently, but the red-square logo became the enduring corporate sign associated with the LEGO Group. It should also be distinguished from the word “LEGO,” whose origin is connected with the Danish phrase “leg godt.”