ΔE 26.2, loose: different enough that you should pick on purpose. Crimson is a little lighter, much more saturated, warmer than Sigvald Burgundy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Crimson is a little lighter, much more saturated, warmer than Sigvald Burgundy.
The same difference applies the other way round: Sigvald Burgundy is a little darker, much more muted, 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 Sigvald Burgundy on the colour wheel See Crimson on the colour wheel
All matches: Sigvald Burgundy equivalents · Crimson equivalents