That pertains to the federal government, but, Colorado’s constitution itself states

[ Section 13. Right to bear arms. The right of no person to keep and bear arms in defense of his home, person and property, or in aid of the civil power when thereto legally summoned, shall be called in question; but nothing herein contained shall be construed to justify the practice of carrying concealed weapons.

Source: Entire article added, effective August 1, 1876, see L. 1877, p. 30.](https://www.sos.state.co.us/pubs/info_center/laws/COConstitution/ColoradoConstitution.pdf)

[“No one is bound to obey an unconstitutional law, and no courts are bound to enforce it.  The general rule is that an unconstitutional statute, whether federal or state, though having the form and name of law, is in reality no law, but is wholly void and ineffective for any purpose, since unconstitutionality dates from the time of its enactment, and not merely from the date of the decision so branding it.  AN UNCONSTITUTIONAL LAW, in legal contemplation, IS AS INOPERATIVE AS IF IT HAD NEVER BEEN PASSED.“ –

16 American Jurisprudence 2d, Sec. 256] (https://nformer.org/16-am-jur-2d.html)