Diversity of red high-redshift sources in RUBIES. Right: F115W−F200W vs. F277W−F444W for RUBIES sources with robust z_spec > 3.1 (gray histogram), which populate a broad distribution in color space. Right: PRISM spectra and NIRCam photometry, G395M spectra (zoomed in on Hα), and 1″ × 1″ NIRCam F444W/F277W/F150W RGB images for three RUBIES targets that are close in color space. The top row shows a typical LRD, with a v-shaped continuum, broad Hα emission line and very compact morphology. The middle row shows an extended red object with a v-shaped continuum, but narrow Hα and [N II] emission. The red source in the bottom row is a point source with a relatively blue continuum, but appears as red due to high equivalent width emission lines, including a broad Hα line. This demonstrates that sources with similar broadband photometric colors can have very different spectral properties.