Ewing Blue vs RAL 210-4
Ewing Blue (Benjamin Moore) and RAL 210-4 (RAL Effect) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 73 vs 75 — so neither will read significantly brighter or darker than the other. A ΔE of 1.7 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Ewing Blue vs RAL 210-4 in Real Spaces
2 real rooms side by side. Ewing Blue and RAL 210-4 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Color Details
Ewing Blue vs RAL 210-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Ewing Blue on one side and RAL 210-4 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 Ewing Blue comparisons
See how Ewing Blue stacks up against other well-photographed colors across different brands and tones.
A 10-point LRV gap (83 vs 73) makes White Dove the marginally brighter of the two.
Ewing Blue reads slightly lighter (LRV 73 vs 69), a gap that shows most in low-lit rooms.
At LRV 73 vs 6, Ewing Blue is decisively the brighter choice.
Ewing Blue reflects far more light (LRV 73 vs 52), opening up a space where Purbeck Stone encloses it.
Ewing Blue reflects far more light (LRV 73 vs 30), opening up a space where Evergreen Fog encloses it.
At LRV 73 vs 52, Ewing Blue is decisively the brighter choice.
Ewing Blue reflects far more light (LRV 73 vs 60), opening up a space where Agreeable Gray encloses it.
At LRV 73 vs 58, Ewing Blue is decisively the brighter choice.
At LRV 73 vs 27, Ewing Blue is decisively the brighter choice.
Ewing Blue reflects far more light (LRV 73 vs 43), opening up a space where French Gray encloses it.
Ewing Blue reflects far more light (LRV 73 vs 4), opening up a space where Naval encloses it.
At LRV 73 vs 55, Ewing Blue is decisively the brighter choice.
At LRV 73 vs 13, Ewing Blue is decisively the brighter choice.
At LRV 73 vs 44, Ewing Blue is decisively the brighter choice.
Pure White reads slightly lighter (LRV 84 vs 73), a gap that shows most in low-lit rooms.
Ewing Blue reflects far more light (LRV 73 vs 21), opening up a space where Artichoke encloses it.
A 8-point LRV gap (73 vs 66) makes Ewing Blue the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 74 vs 73), so neither reads brighter in a room.
A 9-point LRV gap (83 vs 73) makes Snowbound the marginally brighter of the two.
At LRV 73 vs 12, Ewing Blue is decisively the brighter choice.
A 5-point LRV gap (73 vs 68) makes Ewing Blue the marginally brighter of the two.
Ewing Blue reflects far more light (LRV 73 vs 41), opening up a space where Dix Blue encloses it.
Ewing Blue reads slightly lighter (LRV 73 vs 68), a gap that shows most in low-lit rooms.
Ewing Blue reflects far more light (LRV 73 vs 25), opening up a space where Treron encloses it.
At LRV 73 vs 12, Ewing Blue is decisively the brighter choice.
At LRV 73 vs 45, Ewing Blue is decisively the brighter choice.
Ewing Blue reflects far more light (LRV 73 vs 31), opening up a space where Pale Green encloses it.
Ewing Blue reflects far more light (LRV 73 vs 7), opening up a space where Pine Needle encloses it.
Ewing Blue reflects far more light (LRV 73 vs 24), opening up a space where Cement grey encloses it.
Ewing Blue reflects far more light (LRV 73 vs 57), opening up a space where Guilford Green encloses it.