I'm pretty sure this is a 7.x feature as well. Vim now supports color schemes. These are stored in the `colors' folder inside of your Vim install dir. Have a look in there, pick a scheme, and type in a command such as :colorscheme blue. Colors will vary with language syntax, but should stay relatively consistent. Set your favorite color scheme in your vimrc, or make your own scheme.
This site has lots more color schemes: