I own Dravit, and for me, it's never going to work. Its like specing a green exterior, and an orange interior. It has been done, but I think that's before someone realized how much gold flake is in the Dravit Gray color. Here's a picture of my car, in the sun. The way the sun sometimes hits the gold flake, it almost looks like it has a green tint.
I did say it has been done, and here is a video of a Dravit M4 with Yas interior. @4:34 in the video, he holds up the spec sheet, and you can clearly read the color. Not sure who spec'd it, but...