Vim comes with several pre-installed color schemes. In Linux, the color schemes that come with Vim are stored in
/usr/share/vim/vim74/colors/ (where 74 is your version number, sans periods); MacVim stores them in
colorscheme command switches the current color scheme.
For instance, to set the color scheme to "robokai":
The default color scheme is creatively named
default, so, to return to it use
To view all of the currently installed color schemes, type
:colorscheme followed by space and then either tab or ctrld.
User-installed color schemes can be placed in
~/.vim/colors/. Once a color scheme is added to this directory, it will appear as an option to the
To find new color schemes, there are sites like vimcolors which contain a variety of color schemes. There are also tools like vim.ink and Vivify to aid you in creating your own color schemes, or you can create them by hand.