Colour is light of different wavelengths. Hubble can detect different wavelengths. It processes that information. It can see colours.
(, Mon 30 Jul 2018, 22:53, Reply)
by debating an important, albeit academic point about the way colour information is (post-) processed
here's a succinct cnet article to help you out
(, Mon 30 Jul 2018, 23:16, Reply)