Wow, blast from the past!|n|n|cfffcc00
is in many tooltip strings in Warcraft 3 (with the result of coloring the following text some light gold hue).
Lots of examples: https://www.hiveworkshop.com/threads/tooltip-tutorial.51966/ (archived)
Saw it so many times making custom maps, cffffcc
is burned into my memory. I guess the first “c” stands for “color”; it’s not part of the hex code.
Well-spotted! My other comment mentions an example of literal “|” in Warcraft 3.