Behavior of the IRX in the NUVrK color-color diagram. Left: Mean IRX (⟨IRX⟩ color-coded in logarithmic scale) in four redshift bins. The thin parallel lines show the modeled evolution of the ⟨IRX⟩ stripes with the norm of the NrK vector perpendicular to them. In each panel, the dotted line indicates the region of passive galaxies (Moutard et al. 2016a) that are not included in this analysis. Right: Same as the left panel but for the dispersion around the mean (σ(IRX)), color-coded in a logarithmic scale.