Spectro.vim is a project mainly written in Vim Script, it's free.
Colorful scheme using HSL colorspace, S and L can be defined globally.
This is a mirror of http://www.vim.org/scripts/script.php?script_id=1484
Spectro is a colorful scheme with a dark background. The colors are defined in the HSL (Hue, Saturation, Lightness) colorspace. The main interest over the RGB colorspace, is that it's easy to change the overall brightness of the scheme in order to adapt to different screens. The Saturation and Lightness are defined globally with g:spectro_saturation and g:spectro_lightness, which shall be set between 0 and 255.
You can see what it looks like here : "http://pierreantoine.lacaze.free.fr/linux/config/
Note that there is no support for terms yet.