Color–color diagrams for H–K vs. K–L′ (left panel) and L′–M′ vs. K–L′ (right panel). The field objects are color coded into M, L, and T spectral types (see discrete color bar), the young and/or low-gravity dwarf objects are indicated with a gray square, and the directly imaged companions are labeled individually. The companion colors derived in this study are highlighted with a red star. The blue and orange lines are the synthetic colors that have been calculated from the AMES-Cond and AMES-Dusty evolutionary tracks for ages of 20 Myr (solid), 100 Myr (dashed), and 1000 Myr (dotted).