What is considered to be "under color of state law" under the Fourteenth Amendment?

deprivation was committed by a person acting under color of state law." West v. Atkins, 487 U.S. 42, 48 (1988). A defendant acts under color of state law when she exercises power "possessed by virtue of state law and made possible only because the wrongdoer is clothed in the authority of state law." United States v. Classic, 313 U.S. 299, 326 (1941). If a defendant's conduct satisfies the state-action requirement of the Fourteenth Amendment, then the defendant is considered to be acting under color of state law. West, 487 U.S. at 49.