Britannia Blue vs Blue Harmony
Britannia Blue (Benjamin Moore) and Blue Harmony (Jotun) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 18 vs 17 — so neither will read significantly brighter or darker than the other. Where Britannia Blue leans blue, Blue Harmony reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 2.6 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Britannia Blue vs Blue Harmony in Real Spaces
1 real room side by side. Britannia Blue and Blue Harmony are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Blue Harmony brings more warmth to the space, while Britannia Blue keeps things cooler and crisper.
Color Details
Britannia Blue vs Blue Harmony Simulated Comparison
5 simulated room previews — drag the slider on each to see Britannia Blue on one side and Blue Harmony 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 Britannia Blue comparisons
See how Britannia Blue stacks up against other well-photographed colors across different brands and tones.
