How to tell which colorscheme a Vim session currently uses

Question

You can set the Vim color scheme by issuing

:colorscheme SCHEME_NAME

but, oddly enough, you can\'t get the currently used scheme by is

Answer 1

A one-line version of DrAl's answer:

let current_scheme = get(g:, 'colors_name', 'default')

The get() function will fall back to 'default' if the variable has not yet been set.