This is a Solarized color scheme for the Windows command prompt, contributed by Neil Pankey.

See the Solarized home page for screenshots and more details, as well as color schemes for other applications. To contribute or file bug reports or issues, please visit the GitHub repo for this port, or the main Solarized repository.

Inspired by this post

Import the .reg file of choice, e.g. regedit /s solarized-dark.reg.

Both files contain the same palettes, the only difference is the default foreground and background colors. Therefore you can switch between themes on the fly with color 01 for dark and color F6 for light.

If you're using these themes with PowerShell (especially the light), I recommend updating the default error and warning colors in your profile at ~\Documents\WindowsPowerShell\profile.ps1. Setting the background colors for each to "White"/"Black" for light/dark respectively should do the trick, e.g.

$Host.PrivateData.DebugBackgroundColor = "Black"
$Host.PrivateData.ErrorBackgroundColor = "Black"