Galt Blue vs RAL 750-1
Galt Blue (Benjamin Moore) and RAL 750-1 (RAL Effect) come from different manufacturers. Hue-wise, Galt Blue belongs to the blue-green family and RAL 750-1 to the green family. Their light reflectance values are nearly the same — 64 vs 62 — so neither will read significantly brighter or darker than the other. A ΔE of 2.7 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.
Galt Blue vs RAL 750-1 in Real Spaces
2 real rooms side by side. Galt Blue and RAL 750-1 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.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. 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
Galt Blue vs RAL 750-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see Galt Blue on one side and RAL 750-1 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 Galt Blue comparisons
See how Galt Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 64), opening up a space where Galt Blue encloses it.
At LRV 64 vs 52, Galt Blue is decisively the brighter choice.
At LRV 64 vs 30, Galt Blue is decisively the brighter choice.
A 4-point LRV gap (64 vs 60) makes Galt Blue the marginally brighter of the two.
Galt Blue reads slightly lighter (LRV 64 vs 58), a gap that shows most in low-lit rooms.
Galt Blue reflects far more light (LRV 64 vs 27), opening up a space where Denim Drift encloses it.
At LRV 64 vs 43, Galt Blue is decisively the brighter choice.
Galt Blue reads slightly lighter (LRV 64 vs 55), a gap that shows most in low-lit rooms.
Galt Blue reflects far more light (LRV 64 vs 44), opening up a space where Hardwick White encloses it.
At LRV 84 vs 64, Pure White is decisively the brighter choice.
With LRVs of 66 and 64, the two reflect almost the same amount of light.
Shoji White reads slightly lighter (LRV 74 vs 64), a gap that shows most in low-lit rooms.
Galt Blue reflects far more light (LRV 64 vs 12), opening up a space where Pewter Green encloses it.
Galt Blue reflects far more light (LRV 64 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reads slightly lighter (LRV 68 vs 64), a gap that shows most in low-lit rooms.
Galt Blue reflects far more light (LRV 64 vs 12), opening up a space where Vintage Vogue encloses it.
Galt Blue reflects far more light (LRV 64 vs 45), opening up a space where Saybrook Sage encloses it.
At LRV 64 vs 31, Galt Blue is decisively the brighter choice.