Grey Blue vs Downing Slate
Where Grey Blue belongs to RAL Classic's range, Downing Slate is a Sherwin-Williams color. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Downing Slate (LRV 21) reflects noticeably more light than Grey Blue (LRV 7), a difference of 13 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 20.8, 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 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Grey Blue vs Downing Slate in Real Spaces
4 real rooms side by side. Seeing Grey Blue and Downing Slate in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Downing Slate reflects noticeably more light off the walls, making the space read more open than Grey Blue.
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. Downing Slate reflects noticeably more light off the walls, making the space read more open than Grey Blue.
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 Downing Slate will make the room feel meaningfully brighter than Grey Blue would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Downing Slate reflects noticeably more light off the walls, making the space read more open than Grey Blue.
Color Details
Grey Blue vs Downing Slate Simulated Comparison
5 simulated room previews — drag the slider on each to see Grey Blue on one side and Downing Slate 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 Grey Blue comparisons
See how Grey Blue stacks up against other well-photographed colors across different brands and tones.
