Projected phase-space diagrams CL1301.7−1139 (top panel) and CL1411.1−1148 (bottom panel). The star-forming (black dots) and passive (grey points) galaxies with spectroscopic redshifts are identified in the UVJ diagram for CL1411.1−1148. As to CL1301.7−1139, when Ks band photometry is missing, the distinction between the two types of galaxies is also based on the positions of the red sequence, and the blue clump in the colour-magnitude diagrams using the u,  g, and i bands. Assuming a Navarro-Frenck-White (NFW) halo (Navarro et al. 1996), the area under the influence of the cluster potential, either from small relative velocities or small distance to the cluster cores, is shown with the dotted black line. The dashed black lines indicate the region in which the galaxies are considered to be cluster members (i.e., virialised region, Mahajan et al. 2011).