how to add color to terminal in mac

create a .bash_profile file :

$ nano .bash_profile
add these lines  (dark bg) :

export CLICOLOR=1
export LSCOLORS=GxFxCxDxBxegedabagaced

or (bright bg) :

export CLICOLOR=1
export LSCOLORS=ExFxBxDxCxegedabagacad