The five lowest-lying singlet and triplet states of both molecules are computed by applying the TDDFT (with B3LYP, PBE0, and ωB97XD functionals), RI-CC2, and MS-CASPT2 methods at the ground state geometries optimised at the same level of theory. The excitation energies, oscillator strengths and types of states in vacuum/solution and crystal phase are given in Tables and, the reported characters correspond to the MS-CASPT2 excited states. The excitations computed at other levels of theory were reordered to match the MS-CASPT2 excited states. In a few cases, the natures of the highest-lying excitations computed with the TD-DFT and RI-CC2 methods differ from the MS-CASPT2 ones, as highlighted in the comments in Table and. The transition densities are shown in the Supporting Information.