@KrisVerdonck
 
Hi
 
Is that the 3M turquoise Ethernet cable that you are using, it looks good as does the other colour with it, pale lavender? 
 
I have to build a small rack from scratch that will be photographed and used in explanations, so it will really have to look the business.
 
The turquoise colour works well with metallic objects - see the Mecedes Petronas F1 car, and your other colour choice is equally suited to a metallic environment.
 
I'd use Aston Martin's AppleTree Green if I could find cables that colour (photographs are unreliable, however)
 
Cheers