Portland Stone - Dark vs RAL 780-M
Where Portland Stone - Dark belongs to Little Greene's range, RAL 780-M is a RAL Effect color. Portland Stone - Dark reads as beige-greige, while RAL 780-M reads as beige — two distinct hue families, not close cousins. RAL 780-M (LRV 35) reflects noticeably more light than Portland Stone - Dark (LRV 33), a difference of 3 points that becomes especially apparent in rooms with limited natural light. The ΔE 8.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Portland Stone - Dark vs RAL 780-M in Real Spaces
1 real room side by side. Portland Stone - Dark and RAL 780-M 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. 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
Portland Stone - Dark vs RAL 780-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Portland Stone - Dark on one side and RAL 780-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 Portland Stone - Dark comparisons
See how Portland Stone - Dark stacks up against other well-photographed colors across different brands and tones.
