I dusted off an old PuTTY theme, from when I was using Windows Vista, and ported it to GVim (and only GVim.)
The repository has been published as ashgren-gvim on my GitHub.
ashgren is a low-contrast theme with a mid-tone background. A lot of light themes use a blazing white background, which makes it difficult to distinguish among the darker colors they use.
Examples:
As a PuTTY theme, ashgren used a set of darker (regular) and lighter (bold) foreground colors, but this port ends up mostly using the darker side of the palette.