Traditional Blue vs Grey Blue
Traditional Blue is a Behr color while Grey Blue comes from RAL Classic. Traditional Blue reads as blue, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. With LRVs of 9 and 7, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 24.2, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Traditional Blue vs Grey Blue in Real Spaces
3 real rooms side by side. Seeing Traditional Blue 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
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Traditional Blue vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Traditional Blue 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 Traditional Blue comparisons
See how Traditional Blue stacks up against other well-photographed colors across different brands and tones.














































