Sharkfin Blue vs Gunmetal (Metal.)

How close are they?

ΔE 14.2, fair: the same colour family, but not a straight swap. Gunmetal (Metal.) is a little lighter, much more muted than Sharkfin Blue.

Can I use Gunmetal (Metal.) instead of Sharkfin Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Gunmetal (Metal.) is a little lighter, much more muted than Sharkfin Blue.

Can I use Sharkfin Blue instead of Gunmetal (Metal.)?

The same difference applies the other way round: Sharkfin Blue is a little darker, much more saturated.

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.