You completely misunderstand the layers in color paper.
The structure is /overcoat/Cyan (red sensitive)/interlayer/Magenta (green sensitive) / interlayer/Yellow (blue sensitive)/RC/paper/RCbacking
The paper has this layer order for image stability and sharpness. It contains dyes to also improve sharpness and these dyes wash out during processing. No layer washes off.
If unexposed paper has a blue color after processing, then it was fogged with a red safelight.