Tiamat Orange vs Bright Orange

How close are they?

ΔE 14.9, fair: the same colour family, but not a straight swap. Bright Orange is a little darker, more saturated, cooler than Tiamat Orange.

Can I use Bright Orange instead of Tiamat Orange?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Bright Orange is a little darker, more saturated, cooler than Tiamat Orange.

Can I use Tiamat Orange instead of Bright Orange?

The same difference applies the other way round: Tiamat Orange is a little lighter, more muted, warmer.

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.