RGB vs CMYK

hello
i make an animation on after effects.i found out that if i import cmyk illustrator files i get better quality on the colors.
what should i do?

Also, layered Illustrator and Photoshop files need to be saved in RGB or Grayscale color mode for After Effects to import them as a composition and to separate the layers. CMYK, LAB, Duotone, Monotone, and Tritone color modes are not supported for layered files; After Effects will import a file that uses one of these color modes as a single, flattened image.

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Todd Kopriva, Adobe Systems Incorporated
Technical Support for professional video software
After Effects Help & Support
Premiere Pro Help & Support
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[tolis voskopoulos] "...is there any special reason why i should NOT use CMYK?"

Have you tried rendering out a file yet?

The fact that you got a CMYK file to work AT ALL in AE is a minor miracle. It isn't designed to work with CMYK files, as Todd described above. To put it simply, if you use CMYK in AE, you're playing with fire. I can think of no AE user who knowingly uses CMYK.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA