Color selection criteria for the F225W, F275W, and F336W LBG dropouts at ﹩z\sim 1.7,2.2,3﹩, respectively (from left to right). The shaded regions highlight the selection region in color–color space for the dropouts. The black points are all detected sources in UVUDF, while the red points are the ones that make the selection cut. Note the objects selected by the dropout criteria are not only required to be in the shaded region, but also need to make the S/N cuts from Equations (1)–(3). All sources with fluxes below the 1σ limit in the dropout filter have been replaced with their corresponding 1σ upper limit. The orange points are stars from Pickles (1998), the green lines show the color tracks for low redshift (﹩0\lt z\lt 1﹩) elliptical galaxies from Coleman et al. (1980), and the blue lines show color tracks for star-forming galaxies with different dust content, ﹩E(B-V)=0﹩ (solid), 0.15 (dashed), and 0.3 (dotted). The star-forming tracks are derived using the Bruzual & Charlot (2003) template for constant star formation rate, solar metallicity, age of 100 Myr, and dust extinction defined by the Calzetti et al. (2000) law.