Light Phthalo Blue vs AII SV. Gol Lt Blue

How close are they?

ΔE 13.6, fair: the same colour family, but not a straight swap. AII SV. Gol Lt Blue is noticeably darker, warmer than Light Phthalo Blue.

Can I use AII SV. Gol Lt Blue instead of Light Phthalo Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). AII SV. Gol Lt Blue is noticeably darker, warmer than Light Phthalo Blue.

Can I use Light Phthalo Blue instead of AII SV. Gol Lt Blue?

The same difference applies the other way round: Light Phthalo Blue is noticeably lighter, 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.