ΔE 14.4, fair: the same colour family, but not a straight swap. Bright Green is noticeably lighter, more saturated, warmer than Chromium Oxide Green Dark.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Bright Green is noticeably lighter, more saturated, warmer than Chromium Oxide Green Dark.
The same difference applies the other way round: Chromium Oxide Green Dark is noticeably darker, more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Chromium Oxide Green Dark on the colour wheel See Bright Green on the colour wheel
All matches: Chromium Oxide Green Dark equivalents · Bright Green equivalents