Spectral energy distribution modelling of GRB 240419A. The four photometric points derived from the UVES spectrum (see Sect. 3.4) and one nearly simultaneous H-band observation were used for the modelling and shown. An R-band photometric data point obtained at a similar epoch is also displayed. Additionally, we show the extrapolated flux from the best-fit light curve in the i-band at the same time (magenta diamond), which is consistent with the SED modelling results. The best-fit model is represented as a red line.