Obsidian Green vs Portland Stone
Both from Little Greene's palette. Hue-wise, Obsidian Green belongs to the green family and Portland Stone to the beige-greige family. Portland Stone (LRV 55) reflects noticeably more light than Obsidian Green (LRV 1), a difference of 54 points that becomes especially apparent in rooms with limited natural light. Obsidian Green runs green while Portland Stone is decidedly yellow, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 69.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Obsidian Green vs Portland Stone in Real Spaces
3 real rooms side by side. Seeing Obsidian Green and Portland Stone in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. The LRV gap is large enough that Portland Stone will make the room feel meaningfully brighter than Obsidian Green would.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Portland Stone reflects noticeably more light off the walls, making the space read more open than Obsidian Green.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Portland Stone reflects noticeably more light off the walls, making the space read more open than Obsidian Green.
Color Details
Obsidian Green vs Portland Stone Simulated Comparison
5 simulated room previews — drag the slider on each to see Obsidian Green on one side and Portland Stone 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 Obsidian Green comparisons
See how Obsidian Green stacks up against other well-photographed colors across different brands and tones.
