Form vs RAL 850-4
Where Form belongs to Jotun's range, RAL 850-4 is a RAL Effect color. Form reads as greige-grey, while RAL 850-4 reads as grey — two distinct hue families, not close cousins. Form (LRV 30) reflects noticeably more light than RAL 850-4 (LRV 27), a difference of 3 points that becomes especially apparent in rooms with limited natural light. The ΔE 3.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Form vs RAL 850-4 in Real Spaces
5 real rooms side by side. Form and RAL 850-4 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 — Form gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Form reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Form 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. Form reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Form vs RAL 850-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Form on one side and RAL 850-4 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 Form comparisons
See how Form stacks up against other well-photographed colors across different brands and tones.
