Blue Tone vs Tempest Blue Wash

How close are they?

ΔE 30.1, loose: different enough that you should pick on purpose. Tempest Blue Wash is noticeably lighter, much more muted, cooler than Blue Tone.

✓ Two Thin Coats comparison chart lists these two as equivalents.

Can I use Tempest Blue Wash instead of Blue Tone?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 30). Tempest Blue Wash is noticeably lighter, much more muted, cooler than Blue Tone.

Can I use Blue Tone instead of Tempest Blue Wash?

The same difference applies the other way round: Blue Tone is noticeably darker, much more saturated, 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.