RAL,
Try the Lexus website. If you choose "build" an ES 350 2016 model and choose "Nightfall Mica" and the go to packages and choose "ultra luxury package" you are forced to change the color selection to white, black, silver, gray, or perhaps a couple others. I have a feeling that a dealership may be able to bypass this restriction. Anyway, I found the Lexus website frustrating to say the least.
You are right. Lexus is limiting the exterior color choice when choosing the Ultra Luxury Package.
It is my hunch they make this limitation because there is not enough color contrast between the dark Nightfall Mica color and the black glass panoramic roof. That being the case and the consequential lack of demand for that combination, it probably works to their advantage to eliminate that variable from the manufacturing process.
Frustrating, no doubt, for someone like yourself. You might contact a dealer to inquire about making a "special order" ... though I have my doubts about such a recourse. Dealers discourage special ordering anyway, especially in such a situation as this. Maybe you should consider one of the colors offered with the ULP.
I empathize with you. My first ES without the panoramic roof was Obsidian. When I traded it, I had to admit the visual advantage of the panoramic roof was lost with the dark Obsidian color choice, so I ended up choosing Silver Linings Metallic to obtain the sporty look the black panoramic glass affords. Today ... my first choice would be my favorite color, Atomic Silver, which does provide a nice contrast to the black glass. Moreover, I find the lighter exterior colors more dramatically reflect the rich styling cues of the exterior design. I especially like the way Atomic Silver is even more expressive changing character depending upon the angle of light. Love that color
but that's just me!
I hope you can choose another color you'll come to like as well. And yet, one of the many good people in our community here may have a solution for you. That is one of the big advantages of being part of a group who eat, breathe, and sleep Lexus! HA!
I regret I could not be of more help, but I wish you well. I haven't seen Nightfall Mica in real life, but from the photos it appears to be a beautiful color probably with a rich metallic fleck.
Here is our NX in the Atomic Silver color I mentioned. We get lots of favorable comments on it. Notice how the black trim works particularly well with the color ...