This is a Gimp Palette (.gpl) file that provides all of the colors in Google's Material Design Guidelines.
It is meant to supplace the Adobe-only offering from Google ~ Because, as we all know, real artists use GIMP =]
Click here to download Material.gpl. Then place it in your .gimp-2.8/palettes/ folder:
Windows 6.x: c:/users/NAME/.gimp-2.8/palettes/Material.gpl Unix-like: /home/NAME/.gimp-2.8/palettes/Material.gpl
The first two colors are the 500 and 700 shades for each color group, respectively.
You could use the palette above for Inkscape but I have created a more optimized palette
that doesn't have any duplicate colors. Place it in your Inkscape palettes/ folder:
Click here to download Material-Ink.gpl