I have Double Donkey Kong Remix, but my cab is a bit of a frankencab. It's actually a Mario Bros Widebody which was converted to Tetris when I bought it. I've mostly restored it to DK with DK artwork and I've currently got a Double Donkey Kong PCB with Double Donkey Kong Remix in it.
The cab itself is still its original orange color, which I think works nicely for both DK and DK Jr because the orange complements the colors of both games' artwork.
To me, 'DK Junior orange' seems like the best color choice for a Double Donkey Kong / Double Donkey Kong Remix cabinet.