I went to Wheelbuilder recently to get silver DT Revs. Easy, right? For the best wheels I've ever made on a super rim. Silver NOS Ambosia Futura. 282mm so nothing unusual. (And they are set up to cut spokes anyway.) DTs - black only. Sapim equivalents - black only. Ended up buying still lighter bladed Sapims priced like gold. Built up as beautiful wheels and a joy to do, but that's a lot of bucks to spend just to get the gauge al light as I want for best wheels ever in silver for a classic rim and titanium bike where black is the rubber, seat and handlebar tape.
Besides - black spokes look pretty mediocre a few year and miles later. Little scrapes look poor. Little scrapes on silver spokes? Good luck even finding them.