What is the difference between Moon Grey and Grey Blue RLM84?

ΔE 6 (close). Grey Blue RLM84 is a little darker. Swatch colours are estimates.

Moon Grey vs Grey Blue RLM84

Moon Grey

Brand: AMMO by Mig
Range: IONIC Smart Colors
Code: IONIC-0164
Type: an opaque base/layer paint
Swatch: #a8a99e (estimate)

Grey Blue RLM84

Brand: Vallejo
Range: Model Air
Code: 71.103
Type: an opaque base/layer paint
Swatch: #939c91 (estimate)

How close are they?

ΔE 6.3, close: similar, with a visible difference side by side. Grey Blue RLM84 is a little darker than Moon Grey.

Can I use Grey Blue RLM84 instead of Moon Grey?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Grey Blue RLM84 is a little darker than Moon Grey.

Can I use Moon Grey instead of Grey Blue RLM84?

The same difference applies the other way round: Moon Grey is a little lighter.

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 Moon Grey on the colour wheel See Grey Blue RLM84 on the colour wheel

Other Vallejo paints close to Moon Grey

Moon Grey vs Light Green Grey (70.971)Model Color · ΔE 2, very close · closer than Grey Blue RLM84
Moon Grey vs Light Gull Gray (71.121)Model Air · ΔE 4, very close · closer than Grey Blue RLM84
Moon Grey vs Neutral Grey (72.050)Game Color · ΔE 5, very close · closer than Grey Blue RLM84

Other AMMO by Mig paints close to Grey Blue RLM84

Grey Blue RLM84 vs IJA Grey Green (ATOM-20142)ATOM · ΔE 3, very close · closer than Moon Grey
Grey Blue RLM84 vs Seal Grey (ATOM-20131)ATOM · ΔE 5, very close · closer than Moon Grey
Grey Blue RLM84 vs Warm Grey (IONIC-0163)IONIC Smart Colors · ΔE 6, close

All matches: Moon Grey equivalents · Grey Blue RLM84 equivalents