Light Mustard Khaki vs Snake Fang

How close are they?

ΔE 21.6, loose: different enough that you should pick on purpose. Snake Fang is noticeably lighter, more muted than Light Mustard Khaki.

Can I use Snake Fang instead of Light Mustard Khaki?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Snake Fang is noticeably lighter, more muted than Light Mustard Khaki.

Can I use Light Mustard Khaki instead of Snake Fang?

The same difference applies the other way round: Light Mustard Khaki is noticeably darker, more saturated.

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.