With this website I found a great way to find the colour that you might want, but are struggling to get like I have a trouble with trying to find the colour for caucasian skin-tone. On here with a google search I found the colour AND the code to simple post into GIMP to get the appropriate colour.
http://www.color-hex.com/color-palettes/
I highly recommend this to anyone who might want to search for that perfect colour to add to your projects, no matter what it is!