Colour–magnitude diagram of the stars within the KMOS field of view with extracted spectra and H and K_S photometry, after extinction correction. Stars with colours −0.5 mag are most likely foreground stars (left of the vertical line). Different symbols and colours denote different types of stars. Yellow circles denote emission-line/WR stars, cyan squares are sources with featureless spectra, green triangles are O/B type stars, grey dots are late-type stars, black plus-signs are stars of uncertain type. The right y-axis denotes the K_S magnitude after extinction correction, with a mean extinction of A_KS = 2.70 mag.