Nope:
Colorado's criminal libel statute provides:
(1) A person who shall knowingly publish or disseminate, either by written instrument, sign, pictures, or the like, any statement or object tending to blacken the memory of one who is dead, or to impeach the honesty, integrity, virtue, or reputation or expose the natural defects of one who is alive, and thereby to expose him to public hatred, contempt, or ridicule, commits criminal libel.
(2) It shall be an affirmative defense that the publication was true, except libels tending to blacken the memory of the dead and libels tending to expose the natural defects of the living.
(3) Criminal libel is a class 6 felony.
Wrong. Ibid.