Evolution of the colour–magnitude relation for the VIPERS PDR-1 sample from z = 0.4 to z = 1.3. Galaxies are colour-coded with respect to their derived SED type. The number of galaxies for a specific SED type is shown in each slice. The lines in each panel indicate the best-fitting CMR for galaxies on the RS within the given redshift interval: classical approach (dotted), SED galaxy types (dashed). The fit for the colour-bimodality method is not shown as it coincides with the dashed line. Typical error bars (black) are shown in each redshift slice.