\documentclass{scrartcl}
\usepackage[english]{babel}
\usepackage{amsthm}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[colorlinks=true,linkcolor=green]{hyperref}
\begin{document}
\begin{align} \label{test}
a+b=c
\end{align}
\eqref{test}
\end{document}
How can I combine hyperref and eqref such that the braces () are also green and clickable and not only the 1?
\eqref uses \ref for the equation number, therefore \ref is the link, the surrounding parentheses are not part of the link. The following example redefines \eqref to include the parentheses into the link:
\documentclass{scrartcl}
\usepackage[english]{babel}
\usepackage{amsthm}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[colorlinks=true,linkcolor=green]{hyperref}
\makeatletter
\renewcommand*{\eqref}[1]{%
\hyperref[{#1}]{\textup{\tagform@{\ref*{#1}}}}%
}
\makeatother
\begin{document}
\begin{align} \label{test}
a+b=c
\end{align}
\eqref{test}
\end{document}
BTW: Instead of "green" I would use something darker ("darkgreen", ...) for a better contrast to the usual white background.
\autorefin the question. How can it be a duplicate of a question dealing with\autoref? – yo' Jul 22 '14 at 22:24autorefis mentioned in the OP as well in Mico's solution. Both solution (by Heiko Oberdiek and Mico) seem to be applicable for this question as well. – Jul 22 '14 at 22:29\autorefand\eqrefare independent from each other, a user might want to use both. – Heiko Oberdiek Jul 22 '14 at 22:36