ΔE 5.8, very close: most people won’t see a difference side by side. Amarth Blue is a little darker, warmer than Arctic Gem.
Yes, for most jobs. Very close match (ΔE 6). Amarth Blue is a little darker, warmer than Arctic Gem.
The same difference applies the other way round: Arctic Gem is a little lighter, 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 Arctic Gem on the colour wheel See Amarth Blue on the colour wheel
All matches: Arctic Gem equivalents · Amarth Blue equivalents