Match RAL 640-5
RAL Effect RAL 640-5 is a deep, low-reflectance shade with an LRV of 6. 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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RAL 640-5
RAL 640-5#00548ALRV 6
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 640-5
Signal blue
Signal blue
RAL 5005 · LRV 10
Signal blue reads slightly lighter


RAL 640-5
Cobalt Embrace
Cobalt Embrace
43BB 09/340 · LRV 9
Cobalt Embrace reads slightly lighter

RAL 640-5
Stunning Sapphire
Stunning Sapphire
PPG1158-7 · LRV 9
Stunning Sapphire reads slightly lighter

RAL 640-5
California Blue
California Blue
2060-20 · LRV 10
California Blue reads slightly lighter


RAL 640-5
Stiffkey Blue
Stiffkey Blue
281 · LRV 10
Stiffkey Blue reads slightly lighter


RAL 640-5
S 5040-R60B
S 5040-R60B
S 5040-R60B · LRV 4
Nearly identical in tone


RAL 640-5
Passageway
Passageway
V137-6 · LRV 14
Passageway reads slightly lighter





