Cool Ashes vs Grey Blue
Where Cool Ashes belongs to Behr's range, Grey Blue is a RAL Classic color. Hue-wise, Cool Ashes belongs to the grey family and Grey Blue to the blue-grey family. Cool Ashes (LRV 29) reflects noticeably more light than Grey Blue (LRV 7), a difference of 21 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 29.3, 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.
Cool Ashes vs Grey Blue in Real Spaces
1 real room side by side. Seeing Cool Ashes 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
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Cool Ashes reflects noticeably more light off the walls, making the space read more open than Grey Blue.
Color Details
Cool Ashes vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Cool Ashes 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 Cool Ashes comparisons
See how Cool Ashes stacks up against other well-photographed colors across different brands and tones.
