I thought about this, but ended up not being able to choose from the available options.
I already have a CODE with white LEDs (using it atm), and it's great. For that reason I'd probably get a different colour, were I shopping for a new keyboard with LEDs.
However orange is subjective. I've got a keyboard with allegedly yellow LEDs that are clearly orange. So would orange therefore look yellow? Too much ambiguity.
If I were to buy a new keyboard with single colour LEDs, I'd probably choose blue. And not only because I kinda regret getting green LEDs in a Ducky keyboard a few years back when I could have waited a month and gone with blue. Blue is not one of the options.