I would guess you do it the same way you change a color in any other video - using the various color effects.
What are the file types from Digital Juice?
The Digial Juice files are in .mp4.
I've never gone through the process for changing colors, so any tips would be most helpful.
There are several CC Effects, in PrPro, and I would start with the Fast Color Corrector, but do not limit yourself to just that. The Three-Way CC Effect is more powerful, but requires a bit more adjustment.
I doubt that you can use any of the tools in Premiere (CC) to correct an mp4 to precise colors such as your company color palette.
Maybe show us the "palette" and a sample from Digital Juice. ( Frame or screen grab)
Doesn't Digital Juice give you the option of codec to render the animations to? Mp4 seems like an odd intermediate codec for files that should have an alpha channel. I could be mistaken, but I don't think alpha channels are supported in standard mp4.
I thought that those animation loops should be exported form The Juicer™ as uncompressed AVI or QT files with an alpha channel for transparency. An uncompressed file will be better for changing the color palette with premiere's fx as well.
Solid colors will be easier to change with proc amp, color replace, fast CC, 3-way CC, tint, color balance RGB, RGB CC, etc.
Adjusting gradients may be more of a change with those tools.
My mistake - The files from Digital Juice are in a .mov format. Does this help?
.mov is a qt wrapper. Are you using the DJ software yourself? If these files are not uncompressed, you should re-export them from The Juicer™.. After that, try the host of premiere effect. mentioned previously here.
Drop it into PP and adjust the Hue.
This wil change the overall color pallete, but you will not be able to isolate and color individual colors without in depth knowledge of PP and Editing in general.