I'm doing my cousins wedding in a few weeks. She is having a cupcake wedding. She wants the cupcake piped and this color in this link from the Pink Cake Box.

http://blog.pinkcakebox.com/zebra-print-sweet-16-cupcake-stand-2009-12-28.htm

I had some leftover frosting from something else and used Americolor Electric Green. She said she still wanted a little darker. Like a dark lime green or candy apple green. Here's a picture of what I colored. See attachment below.

Do I need to just keep adding electric green color or add a little leaf green to it. Any thoughts? Anyone done this color scheme before. Thanks.

I can't get the attachment of mine to work.

Maybe just a touch of black to deepen it? or one of the darker green colors of petal dust or gel color?

D1976, I think your first instinct was a good one. I'd add a little leaf green to the electic. You're still working with the leftover practice color, right? maybe divide it and try a few different combinations until you get what you (or she) wants.