Robin H. Hi! I don't think I have ever mixed liquid colors with the gel colors. This has me curious. I'm going to mix a small quantity to see what happens. I'll do it by mixing/stirring the colors together then add to RI. In the other small batch, I'll add them directly into the RI, mix/blend in. Sometimes I'll add corn syrup and/or water after coloring and sometimes I'll add before coloring. I have Wilton gels and Americolor liquids, and a few bottles of Duff's. I also have a few teeny tubs of Wilton icing color, liquid/concentrated. I used it one time in RI and loved it. I just made a batch of RI that I think will end up a wasted batch. lol Yeah, yeah, I got distracted, then panicked, and goofed. I guess it doesn't matter though. I can use for practice.