McDonald's color palette has been built on red and yellow tones since the 1950s, representing speed, accessibility, and global recognition.
As highway culture and the concept of fast service gained prominence in America, the colors red and yellow were deliberately chosen to create visibility from a distance and an impression of speed.
Over time, these colors came to represent not just a restaurant chain, but the very concept of modern fast food itself.
Today, the addition of green tones reflects the brand's environmental and contemporary transformation, adding a newer layer to the palette.
