Two triphenylamine-based tris and bis-triazole molecules (TTA and BTA) were reported, exhibiting significant fluorescence in the solid and solution states. TTA and BTA were highly sensitive towards trifluoroacetic acid (TFA) vapor by visible color change as the triazole nitrogen can easily be protonated. Triazoles show extreme sensitivity because of the reliable intramolecular charge transfer (ICT) interactions; the protonation of triazole moieties resulted in a bathochromic shift in UV–visible and fluorescence spectra. These spectra alterations were reversible when the base triethylamine (TEA) was added. When protonated, the fluorescence changed from blue to cyan, returning to blue on TEA addition (deprotonation). TTA displayed an Aggregation-Induced Enhanced Emission (AIEE) effect in the water: acetonitrile (7:3) combination. Density Functional Theory (DFT) calculations were utilized to calculate the energy gap between the HOMO-LUMO of TTA and BTA and their protonated forms. Both the triazoles were highly stable in a di-protonated state. Aside from acid sensitivity, TTA and BTA emitted white light with a high Color Rendering Index (CRI) of 87 % and 98 %, respectively, in the solid and the polymer composite thin film because of their multiple emission bands.