Amorphous-Form

You transform a willing creature you touch, along with everything it's wearing and carrying, into a pile of slime for the duration. The spell ends if the creature drops to 0 hit points. An incorporeal creature isn't affected.

While in the form of a pile of slime, the target can't talk or manipulate objects, and any objects it was carrying or holding can't be dropped, used, or otherwise interacted with. The target can't attack or cast spells.

your slimy colour depends on the dye you use.