ΔE 11.1, fair: the same colour family, but not a straight swap. Evil Sunz Scarlet is a little darker, more muted than Deep Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Evil Sunz Scarlet is a little darker, more muted than Deep Red.
The same difference applies the other way round: Deep Red 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.
See Deep Red on the colour wheel See Evil Sunz Scarlet on the colour wheel
All matches: Deep Red equivalents · Evil Sunz Scarlet equivalents