Rest-frame U − V vs. V − J diagram for galaxies compiled from all clusters, with stellar masses M_⋆ ≥ 10¹⁰ M_⊙ and within projected R ≤ 1000 kpc. Green: spectroscopic cluster members with |Δz_spec| ≤0.02. Orange: photometric cluster members with |Δz_phot| ≤0.08. Grey distribution: UltraVISTA field galaxies with redshifts 1.0 < z < 1.4 in the same mass range. The error bars present typical uncertainties at the depth of our photometry for different stellar masses, and separately for quiescent (red) and star-forming (blue) galaxies.