F_blue of near-field galaxies (violet empty stars) as a function of increasing projected radial distances from groups in the low-redshift bin: ℛ ≤ 2.0, ℛ ≤ 3.0 and ℛ ≤ 4.0. Violet filled stars show F_blue of near field after excluding near-field galaxies with projected radial distances ℛ ≤ 2.0. The filled square shows F_blue for the first near-field annulus, after correcting for the 15% spectroscopic galaxy-group incompleteness, see text for details. Observed F_blue values are displayed at the median distance of each near-field region, while corrected ones are slightly offset for clarity. As a reference we display the F_blue of the field with a cyan star.