At our local Walmart, Wilton sells a Teal color. This may help you as well, it's a color mixing chart put out by our own CC: http://www.cakecentral.com/article2-How-To-Color-Your-Icing
Good luck! 
I'm not sure but my teal food coloring may have come in the pack I bought for making a Care Bear Cake.
Need help on what colors to use to make teal icing. Have to do a baby boy cake and the customer has a pair of teal bootie favors she wants on the cake. I know there's blue in it but what else? BTW, I use the Wilton paste colors. Thanks
Blue. Green and Yellow should give it to you... I use the Wilton Teal color and find it too on the blue side so I add a little of the leaf green to get more on the green side with it, so it depends on whether you are looking for teal blue or teal green... hope that didn't confuse you.
http://www.sugarcraft.com/catalog/coloring/colormixingchart.htm Scroll down to the Wilton colors. There was a formula for teal.
Sugarpaste carries wonderful certified Kosher dusts in luster and petal called Crystal Colors which can be mixed directly into buttercream icing. Their shade of Teal is beautiful.
http://www.sugarpaste.com/colors/colors.htm
Thanks everyone! I have to run some errands at lunch today so I'll be on the lookout for teal coloring. The cake has to be delivered tomorrow. I'm horrible at making colors and there is a party supply store by our Target so maybe I'll just pop in there... Thanks again!
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