Dark color theme with a deep blue background
If you're all set up to use MELPA, simply
M-x package-install RET afternoon-theme RET
Otherwise, ensure sure a directory containing these files is on your load-path.
Use M-x customize-themes to activate it, or put the following in your Emacs configuration file:
(load-theme 'afternoon t)
Colour selection by Chris Kempson and Scott Frazer:
Based on Steve Purcell's
color-theme-sanityinc-tomorrow
theme.