Comparison between the optical attenuation parameter E_B−V (color excess, in mag) obtained from the Balmer decrements (CCM attenuation law) and the values derived from the UV–SED fits to the COS spectra. Here we explore two different attenuation laws: R16 (red) and SMC (blue symbols). Median error bars are plotted in the upper left. Circles represent the LzLCS galaxies while diamonds are the Izotov et al. (2016a,b, 2018a,b, 2021) and Wang et al. (2019) sources. The theoretical ×0.44 shift between the stellar and nebular attenuation, which assumes a foreground screen of dust (Calzetti et al. 2000), is also shown.