Match Concrete grey
RAL Classic Concrete grey is a deep, low-reflectance shade with an LRV of 23. 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 23 and 21, the two reflect almost the same amount of light. At ΔE 1.5 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 23 vs 20), so neither reads brighter in a room. A ΔE of 1.7 means the difference barely reads in a finished room.
With LRVs of 23 and 22, the two reflect almost the same amount of light. At ΔE 2.2 you'd need them side by side to tell them apart.
With LRVs of 23 and 23, the two reflect almost the same amount of light. At ΔE 2.3 you'd need them side by side to tell them apart.
With LRVs of 24 and 23, the two reflect almost the same amount of light. At ΔE 2.5 you'd need them side by side to tell them apart.
With LRVs of 24 and 23, 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 23 and 21, the two reflect almost the same amount of light. At ΔE 3.1 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 23 vs 21), so neither reads brighter in a room. The ΔE 3.2 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 23 vs 23), so neither reads brighter in a room. The ΔE 3.4 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 23 vs 23), so neither reads brighter in a room. The ΔE 3.7 gap is real but not dramatic — distinct as a choice, harmonious together.
A 3-point LRV gap (23 vs 20) makes Concrete grey the marginally brighter of the two. The ΔE 4.0 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 24 vs 23), so neither reads brighter in a room. The ΔE 4.2 gap is real but not dramatic — distinct as a choice, harmonious together.
A 6-point LRV gap (23 vs 17) makes Concrete grey the marginally brighter of the two. The ΔE 7.0 gap is real but not dramatic — distinct as a choice, harmonious together.