Dim (/dɪm/; a contraction of Default IMproved) is a clone of Vim’s default colorscheme, with some improvements:

• It only uses ANSI colors, so you can assign colors in your terminal emulator yourself
• Syntax highlighting is consistent on light and dark backgrounds

Dim comes with Grim: a monochrome version that limits syntax coloring to grayscale.

E.g. using vim-plug:

Plug 'alexandru-dinu/vim-dim'

After installing, set your :colorscheme to dim or grim.

colorscheme dim