Match RAL 640-M
RAL Effect RAL 640-M is a deep, low-reflectance shade with an LRV of 5. 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-M color page →
EffectRAL 640-M
RAL 640-M#004E87LRV 5
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-M
Dark Royal Blue
Dark Royal Blue
2065-20 · LRV 9
Dark Royal Blue reads slightly lighter
RAL 640-M
Signal blue
ClassicSignal blue
RAL 5005 · LRV 10
Signal blue reads slightly lighter
RAL 640-M
Cobalt Embrace
Cobalt Embrace
43BB 09/340 · LRV 9
Cobalt Embrace reads slightly lighter
RAL 640-M
Stiffkey Blue
Stiffkey Blue
281 · LRV 10
Stiffkey Blue reads slightly lighter
