Blue
What Blue Actually Looks Like
Blue 2066-10 is a deep, rich navy that reads as a near-solid dark blue in most interior conditions. In bright daylight it opens up slightly to reveal its full saturated hue, but in low or artificial light it can read almost black. It is a committed, bold color choice, not a color that shifts quietly between moods. What you see on the chip is very close to what you get on the wall, as long as your room has reasonable natural light.
Blue Undertones
This color sits firmly in blue territory without obvious warm or cool undertones pulling it in a clear direction. In certain north-facing rooms or under warm incandescent bulbs it can take on a slightly purple cast. Under cooler daylight or LED lighting the blue stays clean and direct. It does not carry the gray softness of a slate blue or the green touch of a teal-leaning navy, it simply reads as a concentrated, unapologetic blue.
Where Blue Works Best
Because the LRV is very low, Blue 2066-10 absorbs a lot of light rather than reflecting it. That makes it a strong choice for spaces where you want drama and enclosure, think a home library, a study, a powder room, or an accent wall in a living room. It works in rooms with ample natural light, where the depth stays rich without the space feeling like a cave. Use it in rooms with smaller wall areas first if you are new to very dark colors. It is not a practical pick for a dim basement room or a narrow windowless hallway unless a dramatic, moody feel is exactly what you are after.
Where to put Blue
A saturated navy on all four walls in a study or library creates a cocooning, focused atmosphere. Pair it with warm wood shelving and a warm white ceiling to keep the room from feeling oppressive. Natural light from a window during the day keeps the color vibrant rather than flat.
Small powder rooms are ideal for this depth of color because you spend short stretches of time there and the scale is contained. A glossy or semi-gloss finish will add a reflective quality that counters the low LRV and makes the space feel intentional rather than just dark.
Applied to a single fireplace wall or a recessed architectural wall, Blue 2066-10 reads as a bold focal point without committing the whole room to such a low-light color. Keep surrounding walls a light warm white so the navy has visual breathing room.
Dining rooms used primarily in the evening actually benefit from very dark colors. Candlelight and warm pendant fixtures play beautifully against a deep navy, giving the space a formal, enveloping quality. Avoid relying solely on overhead fluorescent lighting, which can flatten the color.
What to Pair With Blue
No specific Benjamin Moore coordinating colors are listed in our database for this color. As a general pairing approach, Blue 2066-10 pairs well with warm whites, natural wood tones, aged brass or unlacquered bronze hardware, and crisp off-whites as trim.
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Colors that clash with Blue
Blue 2066-10 against cool gray tile or concrete flooring can push the room toward an overly cold, blue-gray tone with no warmth to anchor it.
A very cool, blue-white trim against this navy can make the combination feel harsh rather than crisp, especially in rooms with cool northern light.
Orange and navy are complementary colors on the color wheel, so the contrast can become visually aggressive and busy rather than balanced.
Common questions
The LRV is 6.24, which is very low on the 0 to 100 scale. That means the color absorbs the vast majority of light that hits it rather than reflecting it back into the room. Practically, this translates to a space that feels more intimate and enclosed. Rooms with good natural light handle this well; rooms without windows can feel very dark.
Yes, significantly. In a flat or matte finish the color will look its deepest and most velvety but will show marks more easily. A semi-gloss or satin finish will add a slight reflective quality that can make the color read a touch lighter and more dynamic, especially in rooms where light hits the wall directly.
Yes, it is available in both formulas, so you can use it on an exterior front door or shutters as well as interior walls.
Under warm incandescent or warm LED bulbs it can take on a slightly purple or violet cast. Under cooler daylight-balanced LEDs it stays closer to a true navy. If you are using this color in a room that is primarily lit at night, test the paint sample under your actual bulbs before committing.