Aqua Blue vs RAL 660-M
Where Aqua Blue belongs to PPG's range, RAL 660-M is a RAL Effect color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Aqua Blue (LRV 28) reflects noticeably more light than RAL 660-M (LRV 24), a difference of 4 points that becomes especially apparent in rooms with limited natural light. At ΔE 2.4, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Aqua Blue vs RAL 660-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Aqua Blue on one side and RAL 660-M 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 Aqua Blue comparisons
See how Aqua Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 28, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 28), opening up a space where Aqua Blue encloses it.
With LRVs of 30 and 28, the two reflect almost the same amount of light.
Agreeable Gray reflects far more light (LRV 60 vs 28), opening up a space where Aqua Blue encloses it.
At LRV 58 vs 28, Accessible Beige is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 28 vs 27), so neither reads brighter in a room.
French Gray reflects far more light (LRV 43 vs 28), opening up a space where Aqua Blue encloses it.
At LRV 55 vs 28, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 28, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 28), opening up a space where Aqua Blue encloses it.
At LRV 66 vs 28, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 28, Shoji White is decisively the brighter choice.
At LRV 28 vs 12, Aqua Blue is decisively the brighter choice.
At LRV 28 vs 8, Aqua Blue is decisively the brighter choice.
At LRV 68 vs 28, Skimming Stone is decisively the brighter choice.
At LRV 28 vs 12, Aqua Blue is decisively the brighter choice.
At LRV 45 vs 28, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 28), a gap that shows most in low-lit rooms.