Treron vs Cobalt blue
Where Treron belongs to Farrow & Ball's range, Cobalt blue is a RAL Classic color. Hue-wise, Treron belongs to the greige-grey family and Cobalt blue to the blue family. Treron (LRV 25) reflects noticeably more light than Cobalt blue (LRV 6), a difference of 19 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 50.5, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Treron vs Cobalt blue in Real Spaces
2 real rooms side by side. Seeing Treron and Cobalt blue 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 Treron will make the room feel meaningfully brighter than Cobalt blue would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Treron reflects noticeably more light off the walls, making the space read more open than Cobalt blue.
Color Details
Treron vs Cobalt blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Treron on one side and Cobalt 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 Treron comparisons
See how Treron stacks up against other well-photographed colors across different brands and tones.
