I know that numerous people think our colors are red, gray, and black, but like so many others have pointed out, they are red, gray, and navy blue. Take a look at the following photo. Granted, it's of a Northwest Orient DC-10, but when the new livery was introduced in 1989, they simply took the existing colors (plus gray) and reused them.
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Photo © Gary Watt
I, personally, would love to see a retrojet done is this livery.
Aviation is proof that, given the will, we have the capacity to achieve the impossible.