I posted this link in a thread in the "General" forum for some bizarre reason, so I think some people havent seen it yet. So, Im reposting it here, in hopes that it will be as useful to all of you as it is to me!
*Note: This is a gel chart that I have used with Wilton or Americolor colors, and while the combinations will get you the desired color, you may have to tweak the ratio, depending on your medium (buttercream, royal, gumpaste, etc.) Good Luck to all of you here at CC!
Link to Chart: http://www.mediafire.com/file/sbn4x64t2198m1w/Gel%20Color%20Mixing%20Chart.doc
Thanks for this, kisamarie! It's one of the most helpful ones I've seen because it comes with a sample of each color. I saved it right away!