[racket] match in Advanced Student?

Since pattern matching has been a topic of discussion lately -- I'm trying to get simple pattern matching to work in Adv. Student -- for example this expression:

(match (make-color 1 2 3)
  [(make-color r g b) (* r g b)])

gets this response 

  match: expected a pattern, but found a part

I would appreciate an explanation or a pointer to how I can understand this. Thanks.

 - Adam
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