How to change color of hyperref
Use following. You can change colour as per your choice.
\usepackage{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=blue,
citecolor = black,
urlcolor=cyan,
}
To achieve no color in the hyperlinks use:
\usepackage[hidelinks]{hyperref}
or:
\usepackage{hyperref}
\hypersetup{hidelinks}
Reference