Lead halide perovskites, with high photoluminescence efficiency and narrow-band emission, are promising materials for display and lighting. However, the lead toxicity and environmental sensitivity hinder their potential applications. Herein, a new antimony-doped lead-free inorganic perovskites variant Cs₂SnCl₆:xSb is designed and synthesized. The perovskite variant Cs₂SnCl₆:xSb exhibits a broadband orange-red emission, with a photoluminescence quantum yield (PLQY) of 37%. The photoluminescence of Cs₂SnCl₆:xSb is caused by the ionoluminescence of Sb³⁺ within Cs₂SnCl₆ matrix, which is verified by temperature dependent photoluminescence (PL) and PL decay measurements. In addition, the all inorganic structure renders Cs₂SnCl₆:xSb with excellent thermal and water stability. Finally, a white light-emitting diode (white-LED) is fabricated by assembling Cs₂SnCl₆:0.59%Sb, Cs₂SnCl₆:2.75%Bi and Ba₂Sr₂SiO₄: Eu²⁺ onto the commercial UV LED chips, and the color rendering index (CRI) reaches 81.