Stellar mass histogram of the red (early-type) and blue (late-type) isolated KiDS-bright galaxies (red and blue lines), divided by u − r colour (m_u − m_r ≶ 2.5 mag). To isolate the effect of galaxy type on the RAR from that of M_⋆, we select two samples with the same stellar mass distribution by randomly removing galaxies from both samples until only the overlapping region (light blue shaded region) remains.