RAL 640-1 vs Naval
RAL 640-1 is a RAL Effect color while Naval comes from Sherwin-Williams. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 26 vs 4, RAL 640-1 will read as the brighter of the two — a 21-point gap that matters most in north-facing or low-light rooms. At ΔE 42.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 640-1 vs Naval in Real Spaces
3 real rooms side by side. Seeing RAL 640-1 and Naval in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. RAL 640-1 returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that RAL 640-1 will make the room feel meaningfully brighter than Naval would.
Color Details
RAL 640-1 vs Naval Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 640-1 on one side and Naval on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More RAL 640-1 comparisons
See how RAL 640-1 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 26), opening up a space where RAL 640-1 encloses it.
At LRV 52 vs 26, Purbeck Stone is decisively the brighter choice.
A 5-point LRV gap (30 vs 26) makes Evergreen Fog the marginally brighter of the two.
At LRV 60 vs 26, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 26), opening up a space where RAL 640-1 encloses it.
With LRVs of 27 and 26, the two reflect almost the same amount of light.
At LRV 43 vs 26, French Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 26), opening up a space where RAL 640-1 encloses it.
Hardwick White reflects far more light (LRV 44 vs 26), opening up a space where RAL 640-1 encloses it.
At LRV 84 vs 26, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 26), opening up a space where RAL 640-1 encloses it.
Shoji White reflects far more light (LRV 74 vs 26), opening up a space where RAL 640-1 encloses it.
RAL 640-1 reflects far more light (LRV 26 vs 12), opening up a space where Pewter Green encloses it.
RAL 640-1 reflects far more light (LRV 26 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 26), opening up a space where RAL 640-1 encloses it.
RAL 640-1 reflects far more light (LRV 26 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 26), opening up a space where RAL 640-1 encloses it.
A 6-point LRV gap (31 vs 26) makes Pale Green the marginally brighter of the two.
At LRV 26 vs 7, RAL 640-1 is decisively the brighter choice.