ΔE 12.2, fair: the same colour family, but not a straight swap. Russ. AF Light Blue is more muted, warmer than Cobalt Bluegreen.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Russ. AF Light Blue is more muted, warmer than Cobalt Bluegreen.
The same difference applies the other way round: Cobalt Bluegreen is more saturated, 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 Cobalt Bluegreen on the colour wheel See Russ. AF Light Blue on the colour wheel
All matches: Cobalt Bluegreen equivalents · Russ. AF Light Blue equivalents