Gaia CMD of the Car OB1 high-mass stars and OB candidates. The Car OB1 high-mass star sample is in black and new OB star candidates (teff_esphs ≥ 17 000 K and identification with DBSCAN) are in magenta. PARSEC v3.7 isochrones (Bressan et al. 2012) at ages 1 Myr (green), 3 Myr (red), and 10 Myr (black) are overplotted. The arrows show the reddening vectors of a 1 Myr old B0 and a 10 Myr old A0 star for A_V = 6 mag.