Yes, you can find black peripherals (more $$$) , but you will have the same problem as with all beige, ......... the shades are usually all different, ranging from "dark black" ............. to "industrial gray" and everything in-between!
My first system is all black, after that hassle I just go for beige and don't really care if it all matches or not, as long as it works and is stable.....!