Absolute K-band magnitudes for WRs determined using stellar parameters (top points), limiting magnitude contrast from GRAVITY data (arrows), and the absolute K-band magnitudes for limiting companions along with corresponding spectral types (bottom). WNh stars (blue) have, on average, higher luminosities and consequently earlier limiting companion spectral types. WN (orange) and WC (red) stars show lower luminosities and later limiting companion spectral types.