Believe it or not, it is called dayglo orange.
"The term dayglo originates from the name of a paint company whose primary customers were retail advertisers, but that changed with a big boost from the U.S. Department of War (established 1789-1947) during World War Two, a military supply contract which lasted through the undeclared Cold War (and beyond). Ironically during the Cold War decades, the company was not only getting business from the U.S. National Military Establishment (1947-1949) and U.S. Department of Defense (1949-present), but from the hippie-dippie peace movement by selling its neon paints to producers of peace posters and music industry advertising. In 1969 the company first known as Fluor-S-Art, then as Switzer Brothers (in honor of the founders), changed its name to Day-Glo Paint Corporation. In 1985, Day-Glo was sold to Nalco Chemical Company, and today it boasts of being the world’s largest producer of fluorescent colors."
Mate of mine here, knows stuff LOL....
Will give the X6 a go