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What was this? Putting aside their famous metallic-blue colors for a day, the Cowboys wore dark blue jerseys with white numerals, white pants, and white helmets with dark blue stars on the sides—their uniform from the early sixties, when they were a pitiful expansion team rather than one of the most popular sports franchises on the planet. The Chiefs wore white pants, bright red jerseys, and bright red helmets with the state of Texas outlined on either side—their attire from when they were known as the Dallas Texans of the American Football League.
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John Eisenberg (Ten-Gallon War: The NFL's Cowboys, the AFL's Texans, and the Feud for Dallas's Pro Football Future)