ABSTRACT Platinum(II) complexes bearing aromatic ligands have garnered extensive attention as they exhibit highly efficient, stimulus‐responsive luminescence originating from the triplet metal–metal‐to‐ligand charge transfer state when stacked, which enables electronic interactions between platinum ions. However, achieving full‐color luminescence changes in a single system through external stimuli remains challenging. In this work, we synthesized a flexible platinum(II) complex bearing an N ‐het