Celtic Forest 3 vs Black green
Celtic Forest 3 (Dulux) and Black green (RAL Classic) come from different manufacturers. Celtic Forest 3 reads as beige-greige, while Black green reads as blue-green — two distinct hue families, not close cousins. The 45-point LRV gap — 52 for Celtic Forest 3 vs 7 for Black green — means Celtic Forest 3 will open up a space more effectively. A ΔE of 54.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Celtic Forest 3 vs Black green in Real Spaces
1 real room side by side. Seeing Celtic Forest 3 and Black green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Celtic Forest 3 returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Celtic Forest 3 vs Black green Simulated Comparison
5 simulated room previews — drag the slider on each to see Celtic Forest 3 on one side and Black 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 Celtic Forest 3 comparisons
See how Celtic Forest 3 stacks up against other well-photographed colors across different brands and tones.










































