Treron vs Iron Blue
Where Treron belongs to Farrow & Ball's range, Iron Blue is a Jotun color. Treron reads as greige-grey, while Iron Blue reads as blue-grey — two distinct hue families, not close cousins. Treron (LRV 25) reflects noticeably more light than Iron Blue (LRV 18), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Treron runs warm while Iron Blue is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 14.3, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Treron vs Iron Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Treron on one side and Iron 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.
