Form vs Grey Blue
Form (Jotun) and Grey Blue (RAL Classic) come from different manufacturers. Hue-wise, Form belongs to the greige-grey family and Grey Blue to the blue-grey family. The 23-point LRV gap — 30 for Form vs 7 for Grey Blue — means Form will open up a space more effectively. A ΔE of 32.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Form vs Grey Blue in Real Spaces
2 real rooms side by side. Seeing Form and Grey Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Form returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Form returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Form vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Form on one side and Grey Blue 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.
