St. Bart's
What St. Bart's Actually Looks Like
St. Bart's is a deep, saturated blue with a distinct teal push that keeps it from feeling cold or severe. Think of the color of deep coastal water on an overcast afternoon. At LRV 18.4, it absorbs a good amount of light and reads as decidedly moody, but the underlying teal warmth prevents it from collapsing into darkness in a well-lit room. In direct sunlight, the blue-green character opens up noticeably, and in dim or north-facing rooms the color deepens toward a quieter, more serious navy-teal.
St. Bart's Undertones
The dominant undertone is blue, but there is a real teal component that keeps designers debating. Some see it as a straightforward deep blue with green inflections. Others read it as firmly teal, especially when placed next to a pure navy or a true gray-blue. Cool fluorescent lighting tends to pull out the blue, while warm incandescent light coaxes the teal-green side forward. There is no hidden warmth here, no gray muddiness, and no purple. It stays cleanly in the blue-to-teal corridor, which is exactly why it pairs so easily with both warm and cool neutrals.
Where St. Bart's Works Best
St. Bart's works best on surfaces where you want a bold, grounding color that still feels fresh. It is a natural for bedroom walls, where its depth encourages rest without gloom. On a living room accent wall, it gives you instant focus without the heaviness of a true navy. Exteriors are another strong fit, especially as a front door color or a full body color on cottages and bungalows, where the teal undertone reads as coastal and confident. Pair it with crisp white trim and natural wood tones for the most balanced look. Avoid using it on ceilings in small rooms because the low LRV of 18.4 will make the space feel compressed.
Where to put St. Bart's
St. Bart's on all four walls turns a bedroom into a restful cocoon. At LRV 18.4, it will feel immersive but not claustrophobic if you have decent natural light and keep your bedding and curtains in lighter tones. White or oatmeal linen, brass hardware, and warm wood nightstands all complement the teal undertone beautifully.
Use St. Bart's on a single wall behind a sofa or fireplace to anchor the room with color. The blue-teal reads as intentional and saturated without overwhelming the rest of the space. Keep the remaining walls in a clean or warm white from its coordinating palette for the strongest effect.
In a living room with good light, St. Bart's can wrap the entire space for a moody, collected look. Balance it with lighter upholstery, natural fiber rugs, and open shelving. If your room gets limited light, restrict the color to the lower half as wainscoting and let a lighter shade handle the upper walls.
On siding, St. Bart's reads as a coastal blue-teal that shifts through the day as outdoor light changes. It holds up well in full sun without looking washed out. Pair it with crisp white trim and a warm wood or dark charcoal door to keep the palette grounded.
What to Pair With St. Bart's
Extra White (SW 7006) delivers high-contrast, clean trim next to St. Bart's deep blue-teal, while Marshmallow (SW 7001) softens the transition with a slightly warmer white that takes the edge off. Together, these two whites give you flexibility: Extra White for modern crispness, Marshmallow for a more relaxed, traditional feel.
St. Bart's vs similar colors
All comparisons are matched against St. Bart's at LRV 18.4.
Colors that clash with St. Bart's
Vivid warm tones can create a jarring contrast against St. Bart's cool blue-teal, making both colors look garish rather than intentional.
A medium or dark cool gray next to St. Bart's can flatten both colors. The two compete on the cool spectrum without enough contrast to separate them.
At LRV 18.4, St. Bart's already absorbs a lot of light. Pairing it with espresso floors in a compact space can make the room feel like a cave.
Common questions
It lands squarely between the two. In north-facing light, the blue dominates. In warm or south-facing light, the teal-green undertone becomes more visible. Most people read it as a blue with a teal lean.
Its LRV is 18.4, which puts it in the deep range. It can work on all four walls in a bedroom or living room with decent natural light, but in a small or dim space you may want to limit it to an accent wall and keep the other surfaces light.
A clean bright white like Extra White (SW 7006) gives you the sharpest, most modern contrast. If you prefer a softer look, Marshmallow (SW 7001) warms the transition slightly. Both are in its coordinating palette for a reason.
Yes. The color holds its depth well in full sunlight and its teal undertone gives it a coastal quality that suits many architectural styles. Pair it with white trim and consider a warm accent color for the front door.
Almost certainly. At LRV 18.4, a small swatch will look lighter and less saturated than a full wall. Always test with at least a large poster-board sample, and view it at different times of day before committing.