Red and yellow became especially associated with McDonald's brand identity.
The yellow Golden Arches provided the most recognizable element, while red was widely used in restaurant exteriors, signs, packaging, uniforms, and advertising. Together, the colors created a high-visibility palette suited to roadside restaurants and quick recognition.
The combination also helped maintain visual consistency as McDonald's expanded internationally. Individual restaurants have changed architectural styles and interior design over time, but red and yellow remained strongly connected with the classic McDonald's look.
Modern locations may use muted colors, natural materials, or locally adapted designs, so not every restaurant looks equally bright. Even so, the red-and-yellow pairing remains one of the clearest shorthand references to the historic McDonald's visual identity.