Can you wear all black in Hong Kong?

Can you really wear all black in Hong Kong, or is there some sort of dress code that needs to be followed? I've heard that some cultures have strict guidelines when it comes to attire, and I'm curious if the same applies in Hong Kong. Is it considered inappropriate or disrespectful to wear an all-black outfit in certain settings, or is it generally acceptable? And if so, are there any specific occasions or events where wearing all black might not be the best choice?