Radiation Glow vs Boone Tan

How close are they?

ΔE 25.3, loose: different enough that you should pick on purpose. Boone Tan is noticeably lighter, much more muted than Radiation Glow.

Can I use Boone Tan instead of Radiation Glow?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Boone Tan is noticeably lighter, much more muted than Radiation Glow.

Can I use Radiation Glow instead of Boone Tan?

The same difference applies the other way round: Radiation Glow is noticeably darker, much 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.