I am making fondant and I can not get a good rich blue color. I have used royal blue Wilton gel and also added a little Navy Blue to get it darker and it didn't help. What should I do. It is for a Batman Cake - so I need it very blue - not on the baby blue side. Please help! 
Have you tried a little black?
That is usually what i do for the darker colors. Seems to work! 
try americana - the only thing I use
What's Americana?
I use Americolor brand colors. MUCH better than the Wilton colors. Sounds like you need to just keep adding more color. Large amounts of fondant, especially for the darker colors, require more coloring than regular icing does. Add more royal blue and try adding a little sky blue and violet, too. If it starts to get sticky, knead in some powdered sugar.
I LOVE Americolor gel colors... They are the BEST!!!!
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