please help! I made Michele's updated fondant recipe yesterday and colored part of it blue. I used the Wilton gel - royal blue and a couple of drops of navy blue and let it sit overnight. It did not darken at all, it is still light blue - like sky blue I quess. I am trying to get more of a bright blue. What should I do? I want to work on the fondant decorations tomarrow so they can somewhat dry out and then put the rest on the cake on Friday.

If you can't get any Americolor, it's going to take a lot of the Wilton royal blue.