Helpmefind lists only Vintage as a supplier of Midnight, unfortunately.

Darker red, fragrant rose possibilities: Velvet Fragrance, Firefighter, Barcelona (aka Francis Dubreuil) Barcelona has a cupped rather than high-centered form. 'Deep Secret' is a darker but looks like it might be a little more difficult to find.

Oklahoma, Crimson Glory, Chrysler Imperial are other fragrant reds.

'Black Bacarra' has very dark red flowers, but they have little fragrance, and the flowers are smallish.

I'm sure others will offer more suggestions, perhaps better ones. Cold-hardiness may be something to think about, since you are in CO.

Here is a link that might be useful: Deep Secret @ helpmefind roses

If you want a nice healthy, vigorous bush with lots of dark red blooms look at Crimson Bouquet too. It's a Grandiflora not an HT but it's a great rose for me.