Match RAL 580-4
RAL Effect RAL 580-4 is a deep, low-reflectance shade with an LRV of 18. 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.
Their light reflectance is nearly identical (LRV 18 vs 17), so neither reads brighter in a room. A ΔE of 2.7 means the difference barely reads in a finished room.
With LRVs of 19 and 18, the two reflect almost the same amount of light. At ΔE 3.1 they're clearly different, yet close enough to share a room.
With LRVs of 18 and 15, the two reflect almost the same amount of light. At ΔE 3.9 they're clearly different, yet close enough to share a room.
RAL 580-4 reads slightly lighter (LRV 18 vs 15), a gap that shows most in low-lit rooms. At ΔE 6.3 they're clearly different, yet close enough to share a room.
The ΔE 7.3 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 18 and 18, the two reflect almost the same amount of light. At ΔE 9.3 they're clearly different, yet close enough to share a room.
A 4-point LRV gap (22 vs 18) makes Pigeon blue the marginally brighter of the two. A ΔE of 10.0 puts them firmly in different territory — a strong contrast if combined.
With LRVs of 18 and 17, the two reflect almost the same amount of light. At ΔE 16.0 these are two genuinely different directions, not variations on a theme.
Their light reflectance is nearly identical (LRV 19 vs 18), so neither reads brighter in a room. A ΔE of 16.7 puts them firmly in different territory — a strong contrast if combined.
A 4-point LRV gap (18 vs 14) makes RAL 580-4 the marginally brighter of the two. A ΔE of 17.2 puts them firmly in different territory — a strong contrast if combined.