Pure unexposed panchromatic film emulsion is gray and is about the consistency of heavy cream when melted. Other addenda change the colors. Pure orthochromatic emulsion is red and about like cream. Pure blue sensitive emulsion is white and looks just like cream.
When cold, the emulsion is like cream mixed with jello. You can break it with your fingers or a knife.
When coated, the addenda such as acutance dyes and trimmer dyes alter the color to what you see when you look at the exposed leader of 35mm film.