In the attached example, I thought the word Website should be orange, but it is blue.

If color=blue is removed (from \setupinteraction[state=start]), then the word Website is dark green, which is also unexpected, because the only place dark green occurs is in the setuplist for the chapter's page number (i.e., pagecolor=darkgreen). It appears that the default colour for links embedded with \useurl bucks trendy traditional blue hyperlinks, favouring dark green. (Black would also make sense as a default.)

I am confounded because the code explicitly contains the line:


I thought that that would set the external hyperlink colour to orange.

In the same document, how do I set:
Many thanks.

Kindest regards.