Kensington Blue
What Kensington Blue Actually Looks Like
Kensington Blue is a dark, saturated blue that sits somewhere between slate and navy. It reads as a serious, grounded color, neither bright nor purely gray. In strong natural light it shows its blue character clearly. Pull it into a dimmer room and it can shift toward a near-charcoal, almost losing its blue identity entirely. Artificial warm light, like incandescent or warm LED, will push the gray component forward.
Kensington Blue Undertones
The color carries cool undertones with a distinct gray presence underneath the blue. There is no meaningful green or purple pull. Because it is so dark, undertone behavior is subtle, but the gray base is what keeps it from feeling like a straightforward navy.
Where Kensington Blue Works Best
This depth of color suits spaces where you want enclosure and atmosphere. It works on all four walls of a small study, library, or home office where coziness is the point. It earns its place on a single accent wall in a bedroom or living room when the other walls stay light. It is also a strong candidate for exterior shutters, front doors, and exterior trim where a deep nautical blue reads as both traditional and confident.
Where to put Kensington Blue
Dark walls in a workspace can actually sharpen focus. Kensington Blue on all four walls with warm brass hardware and lighter wood tones keeps the room from feeling cold or corporate. Make sure task lighting is strong, because this color will absorb ambient light.
On a single headboard wall it creates a backdrop that makes white bedding and natural linen pop without any effort. Keep the ceiling and remaining walls in a bright warm white so the room does not feel compressed.
One wall behind a sofa or shelving unit works better than four walls unless the room gets serious daylight. Pair with off-white trim and warm-toned textiles to keep the space from reading cold.
Against a light gray, white, or cream exterior, Kensington Blue makes a door or shutter look intentional and sharp. It has enough warmth in the gray to avoid the hard, icy look some true navies can give.
What to Pair With Kensington Blue
No coordinating colors are listed in our database for CC-780, but some general pairings work reliably with a color at this depth and temperature.
Colors that clash with Kensington Blue
Gray tile or blue-gray hardwood alongside Kensington Blue can make the room feel uniformly cold with no visual relief.
If an adjacent open room has strong ochre or orange walls, the contrast with Kensington Blue will be jarring rather than complementary.
Because the LRV is very low, a north-facing room with only overhead lighting will feel like a cave, not a moody retreat.
Common questions
The Benjamin Moore color code is CC-780, the hex is #4B5A71, and the LRV is 11.97. That low LRV confirms this is a genuinely dark color that will absorb a significant amount of light.
It sits between the two. In bright daylight the blue reads clearly. In low light or under warm artificial light, the gray undertone takes over and the color can look almost charcoal. Think of it as a blue that always has one foot in gray territory.
Eggshell is the most versatile choice for walls. It gives just enough sheen to make the color feel rich without highlighting imperfections. Reserve satin or semi-gloss for trim and doors where durability and a bit of contrast matter.
Yes, and it can be striking in the right room. A deep blue ceiling over white or light walls with natural wood furniture creates a sense of shelter. Keep the room well-lit and avoid doing it in a space that already feels small and boxy.
Yes. Benjamin Moore lists it as available in both interior and exterior products, which makes it a practical choice if you want to carry the color from an interior accent to exterior shutters or a front door.