Errors in valence excitations are considered in Fig. , using B3LYP and B(α)LYP. Because transitions that exhibit chargeseparated character are more sensitive to the fraction of exact exchange, we have separated these from the localized transition energies in the data set. Even so, the localized transitions (Fig. ) show a slight uptick in the errors as α increases, although this trend is much more pronounced for CT excitations (Fig. ).