Yeah, I stopped being silly and realised this. I think black saddle, tape and tyres be enough for a nice balance.
I'm gonna go for silver 5800 hubs to be nice and matchy, also silver spokes but I'm unsure on rims. For example, the silver archetypes are very shiny shiny.
If the headset/seatpost/cages are gonna be silver it seems odd to have a black group.
#justmyopinionman