What is the difference between Nickel Azo Yellow and Yellow RLM04?

ΔE 16 (loose). Yellow RLM04 is more saturated, warmer. Swatch colours are estimates.

Nickel Azo Yellow vs Yellow RLM04

Nickel Azo Yellow

Brand: Pro Acryl
Range: Expert Acrylics
Code: E011
Type: an opaque base/layer paint
Swatch: #c89a2a (estimate)

Yellow RLM04

Brand: Vallejo
Range: Model Air
Code: 71.078
Type: an opaque base/layer paint
Swatch: #e59522 (estimate)

How close are they?

ΔE 16.2, loose: different enough that you should pick on purpose. Yellow RLM04 is more saturated, warmer than Nickel Azo Yellow.

Can I use Yellow RLM04 instead of Nickel Azo Yellow?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Yellow RLM04 is more saturated, warmer than Nickel Azo Yellow.

Can I use Nickel Azo Yellow instead of Yellow RLM04?

The same difference applies the other way round: Nickel Azo Yellow is more muted, cooler.

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 Nickel Azo Yellow on the colour wheel See Yellow RLM04 on the colour wheel

Other Vallejo paints close to Nickel Azo Yellow

Nickel Azo Yellow vs Yellow Ochre (70.913)Model Color · ΔE 6, very close · closer than Yellow RLM04
Nickel Azo Yellow vs Desert Yellow (72.063)Game Color · ΔE 8, close · closer than Yellow RLM04
Nickel Azo Yellow vs Buff (70.976)Model Color · ΔE 9, close · closer than Yellow RLM04

Other Pro Acryl paints close to Yellow RLM04

Yellow RLM04 vs Orange Yellow (AMP-007)Standard / Signature / AMP · ΔE 8, close · closer than Nickel Azo Yellow
Yellow RLM04 vs Golden Brown (017)Standard / Signature / AMP · ΔE 10, close · closer than Nickel Azo Yellow
Yellow RLM04 vs Yellow Ochre (038)Standard / Signature / AMP · ΔE 12, fair · closer than Nickel Azo Yellow

All matches: Nickel Azo Yellow equivalents · Yellow RLM04 equivalents