RAL 740-3 vs Aquastone
RAL 740-3 (RAL Effect) and Aquastone (Sherwin-Williams) come from different manufacturers. Hue-wise, RAL 740-3 belongs to the green family and Aquastone to the blue family. The 4-point LRV gap — 49 for Aquastone vs 45 for RAL 740-3 — means Aquastone will open up a space more effectively. ΔE 4.7 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 740-3 vs Aquastone in Real Spaces
5 real rooms side by side. RAL 740-3 and Aquastone 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. Aquastone reads slightly lighter here — a subtle but real difference in how open the space feels.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Aquastone has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Aquastone has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. Aquastone has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. Aquastone has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
RAL 740-3 vs Aquastone Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 740-3 on one side and Aquastone 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 740-3 comparisons
See how RAL 740-3 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 45, White Dove is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 45), a gap that shows most in low-lit rooms.
RAL 740-3 reflects far more light (LRV 45 vs 30), opening up a space where Evergreen Fog encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 45), opening up a space where RAL 740-3 encloses it.
At LRV 58 vs 45, Accessible Beige is decisively the brighter choice.
At LRV 45 vs 27, RAL 740-3 is decisively the brighter choice.
With LRVs of 45 and 43, the two reflect almost the same amount of light.
A 10-point LRV gap (55 vs 45) makes Tranquil Dawn the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 45 vs 44), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 45), opening up a space where RAL 740-3 encloses it.
At LRV 66 vs 45, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 45, Shoji White is decisively the brighter choice.
At LRV 45 vs 12, RAL 740-3 is decisively the brighter choice.
At LRV 45 vs 8, RAL 740-3 is decisively the brighter choice.
At LRV 68 vs 45, Skimming Stone is decisively the brighter choice.
At LRV 45 vs 12, RAL 740-3 is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 45 vs 45), so neither reads brighter in a room.
RAL 740-3 reflects far more light (LRV 45 vs 31), opening up a space where Pale Green encloses it.