Match RAL 840-4
RAL Effect RAL 840-4 is a deep, low-reflectance shade with an LRV of 21. The matches below are ranked by ΔE, a perceptual color-difference score.
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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.
With LRVs of 23 and 21, the two reflect almost the same amount of light. At ΔE 0.6 you'd need them side by side to tell them apart.
With LRVs of 21 and 20, the two reflect almost the same amount of light. At ΔE 1.4 you'd need them side by side to tell them apart.
With LRVs of 21 and 20, the two reflect almost the same amount of light. At ΔE 1.7 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 23 vs 21), so neither reads brighter in a room. A ΔE of 1.8 means the difference barely reads in a finished room.
With LRVs of 22 and 21, the two reflect almost the same amount of light. At ΔE 1.8 you'd need them side by side to tell them apart.
With LRVs of 24 and 21, the two reflect almost the same amount of light. At ΔE 2.4 you'd need them side by side to tell them apart.
With LRVs of 21 and 21, the two reflect almost the same amount of light. At ΔE 2.6 you'd need them side by side to tell them apart.
With LRVs of 21 and 19, the two reflect almost the same amount of light. At ΔE 3.3 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 21 vs 19), so neither reads brighter in a room. The ΔE 3.5 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 24 vs 21), so neither reads brighter in a room. The ΔE 3.9 gap is real but not dramatic — distinct as a choice, harmonious together.
