Celtic Forest 3 vs Portland Stone
Where Celtic Forest 3 belongs to Dulux's range, Portland Stone is a Little Greene color. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. Portland Stone (LRV 55) reflects noticeably more light than Celtic Forest 3 (LRV 52), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Celtic Forest 3 runs warm while Portland Stone is decidedly yellow, which means they'll respond very differently to warm vs cool light sources. At ΔE 2.7, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Celtic Forest 3 vs Portland Stone in Real Spaces
3 real rooms side by side. Celtic Forest 3 and Portland Stone 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. The brightness difference is modest but present — Portland Stone gives the walls a little more lift.
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 reads slightly lighter here — a subtle but real difference in how open the space feels.
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 reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Celtic Forest 3 vs Portland Stone Simulated Comparison
5 simulated room previews — drag the slider on each to see Celtic Forest 3 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 Celtic Forest 3 comparisons
See how Celtic Forest 3 stacks up against other well-photographed colors across different brands and tones.
