J − H (mag) versus H − K_s (mag) diagram of all our targets. The red dots show the chromospherically dominant targets, the cyan dots are the accretors, and the blue line represents the colors of MS objects down to spectral type M9.5. The normal reddening vector, shown with the black arrow, corresponds to A_V = 2 mag. The rightmost target is 2MASS J15361110-3444473 which is suspected to be a binary; hence, it might have color contribution from a second target.