Reference

Hi-vis colors and retroreflective tape do two different jobs: fluorescent backgrounds boost daytime conspicuity, while reflective tape returns headlights to make a worker visible at night. ANSI/ISEA 107-2020 permits yellow-green, orange-red, and red. This guide decodes each color, explains the day-vs-night split, and walks a worked example.

Fluorescent yellow-green and orange-red are both ANSI-compliant hi-vis colors, but they are conspicuous against different backgrounds, which makes the color a real safety choice. This guide explains hi-vis color meaning, how the background colors and retroreflective tape work together, and which color to choose by environment.