Left: positions of PDS 70 c and of the PLF (green stars) in the J–H vs. J color-magnitude diagram. The position of PDS 70 b (orange star) is also indicated for comparison. We also display the positions of field dwarfs indicated with different symbols according to the spectral type and of some low-mass companions. Moreover, we overplot the reddening vector computed for the synthetic extinction curve using R_V = 3.1 (black arrow) and the reddening vector due to the extinction curve of forsterite (red arrow). Right: same as left panel but for the J–K1 versus J diagram.