Yeah that's what I meant the way the photo was taken makes it look black.
Lets not do this "silent fan" thing again, I've not yet come across a "silent fan", some 12db rated pabsts I got were far from silent even at 7v......... it more depends on how quiet your environment is to what you may perceive as "silent"
Regardless it would also be a little silly having worked hard to get a completely fanless system to then put one in just to effectively cool a mobo powerfet sink