ΔE 13.0, fair: the same colour family, but not a straight swap. Ice Yellow is a little lighter, much more saturated than Tooth and Nails.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Ice Yellow is a little lighter, much more saturated than Tooth and Nails.
The same difference applies the other way round: Tooth and Nails is a little darker, much more muted.
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 Tooth and Nails on the colour wheel See Ice Yellow on the colour wheel
All matches: Tooth and Nails equivalents · Ice Yellow equivalents