What is the difference between Underhive Ash and Gray FS26440?

ΔE 8 (close). Gray FS26440 is cooler. Swatch colours are estimates.

Underhive Ash vs Gray FS26440

Underhive Ash

Brand: Citadel / Warhammer
Range: Colour: Dry
Type: an opaque base/layer paint
Swatch: #a8a890 (estimate)

Gray FS26440

Brand: Mr. Hobby
Range: Mr. Color
Code: C-325
Type: an opaque base/layer paint
Swatch: #9baa9d (estimate)

How close are they?

ΔE 8.3, close: similar, with a visible difference side by side. Gray FS26440 is cooler than Underhive Ash.

Can I use Gray FS26440 instead of Underhive Ash?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Gray FS26440 is cooler than Underhive Ash.

Can I use Underhive Ash instead of Gray FS26440?

The same difference applies the other way round: Underhive Ash is 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.

See Underhive Ash on the colour wheel See Gray FS26440 on the colour wheel

Other Mr. Hobby paints close to Underhive Ash

Underhive Ash vs Gray Green (C-128)Mr. Color · ΔE 5, very close · closer than Gray FS26440
Underhive Ash vs Light Gray (C-97)Mr. Color · ΔE 9, close
Underhive Ash vs Light Aircraft Gray BS381C 627 (C-332)Mr. Color · ΔE 10, close

Other Citadel paints close to Gray FS26440

Gray FS26440 vs Longbeard GreyColour: Dry · ΔE 7, close · closer than Underhive Ash
Gray FS26440 vs Rakarth FleshColour: Base · ΔE 9, close
Gray FS26440 vs Administratum GreyColour: Layer · ΔE 12, fair

All matches: Underhive Ash equivalents · Gray FS26440 equivalents