182 Transparent Bright Orange / Trans-Orange
This color was introduced in 2004 (maybe 2003?) with Clikits and Alpha Team Mission Deep Freeze. As you can see, the color shows a silly amount of variation, probably more than any other color.
Glows faintly under a UV light, for the most part. Some parts don't glow, some glow almost as much as Trans-Neon Orange.