Can anyone tell me how I go about making the color tiffany blue? Is there a formula?

I asked the same question and was told Wilton's Sky Blue or Aqua I wasn't sure which one would give me that exact color so I bought both and am trying later in the week!

I use a small amount of wiltons sky blue and have always had a great tiffany blue tone

I used wilton's royal blue and americolor's turquoise.. Here is a link to my cake:
http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1539548
HTH

wiltons teal blue without a doubt.