Well, I wasn't sure which one to take, because the color I see on mine wasn't really match any existing color available.
But many DOT owners confirm me to buy that one
20 FT 3/4 INCH Light Blue T-Molding
At first sight, it doesn't really look the same...
... but, as usual, time faded the color, see the back (supposed 'unfaded') of it... it's almost the same color to me at 90%
Looks great to me! And it glows like hell
Oh, I've ordered
2 x 20 FT 3/4 INCH Light Blue T-Molding... so I have 1 x 20 feet for sale if you are interested