Match RAL 640-4
RAL Effect RAL 640-4 is a deep, low-reflectance shade with an LRV of 7. 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.
View full RAL 640-4 color page →
EffectRAL 640-4
RAL 640-4#005C8CLRV 7
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 640-4
Traffic blue
ClassicTraffic blue
RAL 5017 · LRV 11
Traffic blue reads slightly lighter
RAL 640-4
Cosmic Cobalt
Cosmic Cobalt
P500-7 · LRV 10
Cosmic Cobalt reads slightly lighter
RAL 640-4
Stiffkey Blue
Stiffkey Blue
281 · LRV 10
Stiffkey Blue reads slightly lighter
RAL 640-4
Passageway
Passageway
V137-6 · LRV 14
Passageway reads slightly lighter
RAL 640-4
S 5010-R90B
S 5010-R90B
S 5010-R90B · LRV 19
S 5010-R90B reads noticeably lighter