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Sherwin-Williams SW-2739 / Light & depth

Charcoal Blue in a North-Facing Room: Will the Depth Work?

Charcoal Blue can be assessed for a north-facing room, but the direction alone cannot determine the result. Its LRV is 6; the key concern is a nearly black blue for defined architectural areas .

Color guide · Updated September 23, 2026

Sitting room with muted blue walls, warm wood and cream upholstery

Begin with the weaker light

Charcoal Blue can be assessed for a north-facing room, but the direction alone cannot determine the result. Its LRV is 6; the key concern is a nearly black blue for defined architectural areas . Charcoal Blue's low reflectance places it among the nearly black navy choices, not among light or medium blues.

Why the white shelves and warm oak relationship matters

White shelving can make the dark shape readable, while warm oak prevents the scheme from relying entirely on a blue-and-white contrast.

Charcoal Blue has an LRV of 6; Sherwin-Williams Sea Serpent SW-7615 is 7. The difference is 1 points, with Sea Serpent returning more light under the reference measurement.

Keep the surroundings in the test

Treat a north-facing room with Charcoal Blue as a possible enclosed, dark scheme rather than a failed bright one. Assess the room under its normal lighting and decide whether pale furniture and architectural edges remain readable. If brightness is the main goal, compare a different depth before extending the paint.

A lighting result needs a practical decision

Decide whether black-like depth is welcome in the darkest corner; a navy name does not guarantee obvious blue everywhere. The situations that call for another color covers that related choice.

Window size, obstruction and season still matter when choosing Charcoal Blue. A compass direction is not a brightness measurement. In the Northern Hemisphere, north-facing daylight is often less directly sunlit; the actual room remains the test. Before ordering samples, compare room-planning features in the paint color visualizer roundup.

Sources & notes

Color specifications: Sherwin-Williams Charcoal Blue SW-2739. The recorded LRV is 6. Named comparison values come from the respective manufacturers; material schemes are editorial suggestions.

This guide reviews published color information and proposes practical sample checks. It does not claim first-hand paint testing or customer-review scores. Sherwin-Williams does not sponsor or endorse this site. Product names and trademarks belong to their respective owners. Confirm the color in a physical sample and select the coating for the actual surface and finish.