# Change the colour of citations in the Tufte book class

How can I change the colour used for margin citations in the Tufte book class to grey? I'd like for the citations to take a visual back-seat to margin notes and figure/table descriptions.

• I don't think there's a specific hook for that, but you could use the \setcitationfont command. Something like \setcitationfont{\normalfont\footnotesize\textcolor{gray}} should work. – Thruston Mar 13 '15 at 18:24
• Can you also please add a minimal working example (MWE) that illustrates what you want, (ie with some sort of bibliography for the citations). It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – Thruston Mar 13 '15 at 18:32
• @Thruston, thank you that did the trick. Though I found it had to be \setcitationfont{...\color{gray}} instead of \textcolor. – David Rutten Mar 13 '15 at 19:38

The tufte-book class does not provide a hook for the colour of footnotes, but it does provide one for the font, so you could try adding this to the preamble.
 \setcitationfont{\normalfont\footnotesize\color{gray}}