If you've ever looked closely at the USB ports on your computer, motherboard, or docking station, you might've noticed they're not all the same color. Black, blue, teal... and sometimes, bright red.

Darker colors like charcoal or slate gray absorb light and can make a kitchen feel more confined. Rich jewel tones, like emerald or ruby red, similarly can make the walls appear closer together.

You might have noticed that the USB ports on your device, whether it's a laptop, motherboard, or docking station, aren't all the same color – some USB ports are yellow, some are red, and others are a ...