Location of BlueSFGs, RedSFGs, and QGs at 3 < z < 4 in the SFR–M_* plane. The Schreiber et al. (2015) MS is displayed as a solid blue line. We represent the 1σ scatter of this MS associated with 0.5 < ΔMS < 2 (∼0.3 dex) as a shaded blue area as well as a wider scatter of 0.33 < ΔMS < 3 (∼0.5 dex) in lighter blue. The ΔMS < 0.6 dex criterion used in combination with the UVJ diagram to define QGs. We rescaled all SFR values to the median redshift of our mass-complete sample (z_median = 3.51) as explained in the main text. The sample is mass-complete for the three populations above the thick black line.