How to change the color of bullets in a list

Question

How can I change the color of bullets in a book?

\documentclass{book}
\usepackage{pifont}
\usepackage{xcolor}
\definecolor{myblue}{RGB}{0,29,119}

\begin{document}

\begin{dinglist}{110}
  \item{Sample text}

  \begin{dinglist}{228}
    \item{Sample text}

   \begin{dinglist}{227}
     \item{Sample text}

   \end{dinglist}
  \end{dinglist}
\end{dinglist}

\end{document}

Answer 1

you can define custom item commands:

\documentclass{book}
\usepackage{pifont}
\usepackage{xcolor}
\definecolor{myblue}{RGB}{0,29,119}

\newcommand{\bsquare}{\item[\color{myblue}\ding{110}]} 
\newcommand{\barrow}{\item[\color{myblue}\ding{228}]}
\newcommand{\bwarrow}{\item[\color{myblue}\ding{227}]}

\begin{document}

\begin{dinglist}{110}
  \bsquare{Sample text}

  \begin{dinglist}{228}
    \barrow{Sample text}

   \begin{dinglist}{227}
     \bwarrow{Sample text}

   \end{dinglist}
  \end{dinglist}
\end{dinglist}

\end{document}

or as per Christoph B comment (same preamble):

\begin{document}

\begin{itemize}
  \bsquare Sample text

  \begin{itemize}
    \barrow Sample text

   \begin{itemize}
     \bwarrow Sample text

   \end{itemize}
  \end{itemize}
\end{itemize}
\end{document}

Answer 2

The following MWE provides \itemcolor{<colour>} that allows you to set the colour of the list item as you wish:

\documentclass{article}
\usepackage{pifont,xcolor}% http://ctan.org/pkg/{pifont,xcolor}
\definecolor{myblue}{RGB}{0,29,119}
\newcommand{\itemcolor}[1]{% Update list item colour
  \renewcommand{\makelabel}[1]{\color{#1}\hfil ##1}}
\begin{document}

\begin{dinglist}{110}
  \itemcolor{myblue}
  \item Sample text
  \begin{dinglist}{228}
    \itemcolor{green!70}
    \item Sample text
    \itemcolor{red!50}
    \item Sample text
    \begin{dinglist}{227}
      \item Sample text
   \end{dinglist}
  \end{dinglist}
\end{dinglist}

\end{document}

enumitem provides a list-wise hook into the items via the label key-value:

\documentclass{article}
\usepackage{enumitem,pifont,xcolor}% http://ctan.org/pkg/{enumitem,pifont,xcolor}
\definecolor{myblue}{RGB}{0,29,119}
\begin{document}

\begin{itemize}[label={\color{myblue}\Pifont{pzd}{\char110}}]
  \item Sample text
  \begin{itemize}[label={\color{green}\Pifont{pzd}{\char228}}]
    \item Sample text
    \item Sample text
    \begin{itemize}[label={\color{red!50}\Pifont{pzd}{\char227}}]
      \item Sample text
   \end{itemize}
  \end{itemize}
\end{itemize}

\end{document}

As usual, you don't have to define these lists at the document level. It can be done within the preamble, separating structure from content. See the enumitem documentation (section 5 Global settings, p 9) and the use of \setlist[<list type + level>]{<format>}.

Answer 3

You can hack into pifont and redeclare one of its commands, for example \Pisymbol:

\documentclass{book}
\usepackage{pifont}
\usepackage{xcolor}
\definecolor{myblue}{RGB}{0,29,119}

\newcommand{\myPisymbolformatcommand}{}

\newcommand{\hackintoPisymbol}[1]{%
\renewcommand{\myPisymbolformatcommand}{#1}
}

\renewcommand{\Pisymbol}[2]{{\Pifont{#1}\myPisymbolformatcommand\char#2}}

\begin{document}

\begin{dinglist}{110}
  \item{Sample text}

  \begin{dinglist}{228}\hackintoPisymbol{\color{myblue}}
    \item{Sample text}

   \begin{dinglist}{227}
     \item{Sample text}

   \end{dinglist}
  \end{dinglist}
\end{dinglist}

\end{document}