An analysis of the nature of the change in magnetic properties in the Cr-Cu-HfSe2 system as a result of separate and joint intercalation of hafnium diselenide by chromium and copper atoms is presented. It is shown that a paramagnetic state is formed in three-component systems, which is described by the Curie-Weiss law. In CuxCr0.25HfSe2 compounds, when approximating the temperature dependences of the magnetic susceptibility, the dependence of the effective magnetic moments in magnitude and the Curie-Weiss paramagnetic temperature in magnitude and sign on the temperature range of approximation was noted. When this interval was shifted to higher temperatures, there was a monotonous decrease in the magnitude of the effective magnetic moments and a change in the sign of the paramagnetic Curie-Weiss temperature from negative to positive. To describe this dependence, it is proposed to use alternative models for the formation of the magnetic state.