Opal green vs RAL 740-5
Opal green is a RAL Classic color while RAL 740-5 comes from RAL Effect. Hue-wise, Opal green belongs to the blue-green family and RAL 740-5 to the blue family. At LRV 11 vs 7, Opal green will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 6.9, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Opal green vs RAL 740-5 in Real Spaces
1 real room side by side. Opal green and RAL 740-5 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.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Opal green gives the walls a little more lift.
Color Details
Opal green vs RAL 740-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Opal green on one side and RAL 740-5 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 Opal green comparisons
See how Opal green stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 11), opening up a space where Opal green encloses it.
At LRV 69 vs 11, Ammonite is decisively the brighter choice.
Opal green reads slightly lighter (LRV 11 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 11, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 11, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 11), opening up a space where Opal green encloses it.
At LRV 60 vs 11, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 11), opening up a space where Opal green encloses it.
Denim Drift reflects far more light (LRV 27 vs 11), opening up a space where Opal green encloses it.
At LRV 43 vs 11, French Gray is decisively the brighter choice.
A 6-point LRV gap (11 vs 4) makes Opal green the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 11), opening up a space where Opal green encloses it.
With LRVs of 13 and 11, the two reflect almost the same amount of light.
Hardwick White reflects far more light (LRV 44 vs 11), opening up a space where Opal green encloses it.
At LRV 84 vs 11, Pure White is decisively the brighter choice.
A 11-point LRV gap (21 vs 11) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 11), opening up a space where Opal green encloses it.
Shoji White reflects far more light (LRV 74 vs 11), opening up a space where Opal green encloses it.
Snowbound reflects far more light (LRV 83 vs 11), opening up a space where Opal green encloses it.
With LRVs of 12 and 11, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 11), opening up a space where Opal green encloses it.
At LRV 41 vs 11, Dix Blue is decisively the brighter choice.
At LRV 68 vs 11, Calamine is decisively the brighter choice.
At LRV 25 vs 11, Treron is decisively the brighter choice.
With LRVs of 12 and 11, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 11), opening up a space where Opal green encloses it.
At LRV 31 vs 11, Pale Green is decisively the brighter choice.
A 4-point LRV gap (11 vs 7) makes Opal green the marginally brighter of the two.
At LRV 24 vs 11, Cement grey is decisively the brighter choice.
At LRV 57 vs 11, Guilford Green is decisively the brighter choice.