Murder Scene vs Deep Red

How close are they?

ΔE 12.0, fair: the same colour family, but not a straight swap. Deep Red is a little darker, more muted than Murder Scene. They are different kinds of paint: Army Painter Murder Scene is a one-coat contrast-style paint and Reaper Deep Red is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.

Can I use Deep Red instead of Murder Scene?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Deep Red is a little darker, more muted than Murder Scene. They are different kinds of paint.

Can I use Murder Scene instead of Deep Red?

The same difference applies the other way round: Murder Scene is a little lighter, 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.