Infrared color–color diagrams for stellar members in Briceño-1 (red) and OBP-near (blue). Left: 2MASS near-infrared JHKs color–color diagram. Overplotted are the main sequence (black curve) and giant branch (green curve) from Bessell & Brett (1988) for reference. An extinction vector of length AV = 3 mag is shown as a black arrow, indicating the direction of reddening for extincted sources. The two gray dashed lines show the reddening band, plotted parallel to the extinction vector and above the main sequence. Right: WISE mid-infrared color–color diagram. An extinction vector of length AV = 5 mag is shown as a black arrow. The gray dashed line separates the groups roughly into Class II and Class III YSOs. The number of sources that fall in each class per group is given in the legend.