While learning about the creation of man pages, I came across something that I had not considered before, man page in color?  This can be done with a little installation of most.

Using a CentOS 6 minimal install, most can be installed via yum.

yum install -y most

Add most to the environment.

export PAGER="/usr/bin/most -s"

Check out the man pages in color.

Source(s)
https://www.cyberciti.biz/faq/unix-linux-color-man-pages-configuration/