I have a cake for Saturday it will be buttercream with fondant accents. I need to make Texas Longhorn Orange using Wilton Colors. Any suggestions on how to acheive this color? Thank you for your advise.

Wilton makes a copper gel colour. Im not sure exactly what shade the longhorns are but its a very nice burnt orange. I have also mixed wilton orange with a touch of red and brown before to get a copper colour.
Goodluck

For the longhorns cakes I have done, always use orange with brown until I get the right color.