Black grey vs Sun yellow
Both from RAL Classic's palette. Hue-wise, Black grey belongs to the blue-grey family and Sun yellow to the beige-yellow family. Sun yellow (LRV 41) reflects noticeably more light than Black grey (LRV 6), a difference of 34 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 94.2, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Black grey vs Sun yellow in Real Spaces
1 real room side by side. Seeing Black grey and Sun yellow in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Sun yellow will make the room feel meaningfully brighter than Black grey would.
Color Details
Black grey vs Sun yellow Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Sun yellow 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
