Quartz grey vs RAL 630-4
Where Quartz grey belongs to RAL Classic's range, RAL 630-4 is a RAL Effect color. Hue-wise, Quartz grey belongs to the grey family and RAL 630-4 to the blue family. Quartz grey (LRV 17) reflects noticeably more light than RAL 630-4 (LRV 6), a difference of 10 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 31.9, 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.
Quartz grey vs RAL 630-4 in Real Spaces
3 real rooms side by side. Seeing Quartz grey and RAL 630-4 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Quartz grey reflects noticeably more light off the walls, making the space read more open than RAL 630-4.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Quartz grey reflects noticeably more light off the walls, making the space read more open than RAL 630-4.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Quartz grey reflects noticeably more light off the walls, making the space read more open than RAL 630-4.
Color Details
Quartz grey vs RAL 630-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Quartz grey on one side and RAL 630-4 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 Quartz grey comparisons
See how Quartz grey stacks up against other well-photographed colors across different brands and tones.
