Match RAL 840-4
RAL Effect RAL 840-4 is a deep, low-reflectance shade with an LRV of 21. The matches below are the closest equivalents available across every brand on Pontata, ranked by ΔE — a perceptual color difference score. A ΔE under 3 is subtle; under 10 is noticeable but harmonious; above 25 means genuinely different colors.
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EffectRAL 840-4
RAL 840-4#808077LRV 21
Closest matches across every brand
One match per brand, ranked by ΔE — a perceptual color difference score calculated from Lab color space values. Lower is closer. Click any card to compare side by side in simulated rooms.
RAL 840-4
Concrete grey
ClassicConcrete grey
RAL 7023 · LRV 23
Nearly identical in tone
