Step 1: Install the awesome vim-colorschemes
If you’re using vim + vundle like me:
" add to .vimrc
Plugin 'flazz/vim-colorschemes'
:PluginInstall
Step 2: Choose your colorscheme
There’s a pretty cool site that aggregates most of the available colorschemes on github and previews them for you. You can check them out at vimcolors.com
Step 3: Install your colorscheme
Most colorschemes are pretty easy to install. To get you started, you can clone flazz/vim-colorschemes and just copy the colors/*.vim into your ~/.vim/colors.
If you do a simple ls -all on the newly copied ~/.vim/colors, you should see something like:
win9xblueback.vim
wintersday.vim
winter.vim
wombat256i.vim
wombat256mod.vim
wombat256.vim
This tells you what colorschemes are available for you to use.
Step 4: Use it!
In my case, I’ve chose to install the awesome CandyPaper color scheme by first copying its colors/CandyPaper.vim into my ~/.vim/colors/.
Then, all I need to do is in my vim, run:
:colo CandyPaper
And I’m all set!

Remember to add this in your .vimrc
set t_Co=256
colo CandyPaper
Cheers!