The original McDonald’s restaurant sign featuring the Golden Arches used yellow as its defining color.
The arches began as architectural elements on McDonald’s restaurants, where their bright color helped the buildings stand out from the roadside. As the company developed a corporate identity, the yellow arches became a durable visual shorthand for McDonald’s restaurants and signage. The color also helped the symbol remain highly visible from a distance.
Although McDonald’s signs have appeared with different backgrounds, layouts, and supporting colors over the decades, the arches themselves are characteristically golden yellow. This is why the symbol is known as the Golden Arches rather than simply the letter “M.” The arches’ architectural origin is also important: the earliest design was not initially created as an abstract corporate logo. It became one through repeated use in signs, packaging, advertising, and later digital branding.