Using 是 properly in sentences This page describes how to use 是 properly in sentences:


  是 (shì) is only used to link two nouns. It cannot be used to link a
  noun and an adjective. This is a very common mistake for people just
  beginning to learn Chinese. For that kind of sentence, you'll want to
  use a different structure with the linking word 很 (hěn).


It makes sense, but one pattern is not clear.

Take for example: "All her clothes are black."

Would you say， 她什麼衣服都很黑色，since you cannot say， 她什麼衣服都是黑色？

It seems strange to say 很黑色 in this context, so confirmation would be most appreciated.
The confusion here lies with the fact that「黑」(black) is an adjective, but「黑色」(black colour) is a noun. So, the correct way to say your example meaning is one of these:


她什麼衣服都很黑 (not 黑色)
她什麼衣服都是黑色的 (not 黑)


「的」should be appended on the end of the second example to make it a nominalised adjective, and「色」is optional:


  她什麼衣服都是黑的


This syntax equates the following two:


黑色的衣服
衣服是黑色的