I know you want to match the color scheme but if you are into quietness, then take a look at the Noctua NF-S12A fans because they are one of the best fans on the market. I have four of these fans in my case I cannot hear them running even under full load. Take a look at this in-depth review.http://www.relaxedtech.com/reviews/noctua/nf-s12a/1
I know that Noctuas are hard to beat for performance, but the colour is too off-putting. Under any other circumstance, I wouldn't mind, but my case is windowed.