ΔE 14.1, fair: the same colour family, but not a straight swap. Shiny Gold is a little lighter, more saturated than Thallax Gold.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Shiny Gold is a little lighter, more saturated than Thallax Gold.
The same difference applies the other way round: Thallax Gold is a little darker, 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 Thallax Gold on the colour wheel See Shiny Gold on the colour wheel
All matches: Thallax Gold equivalents · Shiny Gold equivalents