S 5040-G vs Opal green
S 5040-G is a NCS color while Opal green comes from RAL Classic. These are both blue-greens, so the question isn't which hue to choose — it's where within blue-green to land. At LRV 11 vs 8, 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 9.1, 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.
S 5040-G vs Opal green in Real Spaces
1 real room side by side. S 5040-G and Opal green 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. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
S 5040-G vs Opal green Simulated Comparison
5 simulated room previews — drag the slider on each to see S 5040-G on one side and Opal green 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 S 5040-G comparisons
See how S 5040-G stacks up against other well-photographed colors across different brands and tones.
