Niblet Green vs Phthalo Green (Yellow Shade)

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Phthalo Green (Yellow Shade) is a little darker, more saturated than Niblet Green.

Can I use Phthalo Green (Yellow Shade) instead of Niblet Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Phthalo Green (Yellow Shade) is a little darker, more saturated than Niblet Green.

Can I use Niblet Green instead of Phthalo Green (Yellow Shade)?

The same difference applies the other way round: Niblet Green is a little lighter, 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.