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Mid-Century ModernSouth-Facing

Dark Cobalt Blue

Behr · PPU15-3

The Analysis

Dark Cobalt Blue has a very low Light Reflective Value (LRV) of 9.35, meaning it absorbs most light rather than bouncing it back. This creates a cozy, enclosed atmosphere that makes large rooms feel intimate, though it will naturally make small spaces feel tighter and more cave-like.

This is a high-impact choice best used as a bold accent wall, in built-in cabinetry, or for an entire room if you want a moody, dramatic aesthetic. It serves as a strong anchor that commands attention rather than fading into the background.

LRV 9

History & Origin

Deep, saturated blues like this have a timeless quality, often associated with historic libraries or high-end studies. It bridges the gap between traditional colonial-style formality and the modern trend of bold, monochromatic interiors.

Undertonecool
FamilyBlue

How to Use It

Use this in rooms where you want depth, such as a home office or a media room. Pair it with warm wood tones or brass hardware to add contrast, or use matte black fixtures to lean into a sleek, industrial look.

The Mood

Living with this colour feels grounding and stable. It is a restful, serious tone that encourages focus and calm, making it ideal for spaces where you want to minimize visual distractions.

Colour harmonies

Complementary

Opposite on the colour wheel — bold, high-contrast pairings. Use for a feature wall or furniture you want to command attention.

Analogous

Neighbouring hues — cohesive and calm, great for layered schemes that feel collected rather than matched.

Split complementary

Near-opposites for strong contrast with a little less tension than a pure complement. A favourite of interior designers.

Triadic

Three evenly spaced hues — balanced, vibrant, and versatile. Keep one dominant and use the others sparingly.

Tetradic (square)

Four hues in a square on the wheel — rich, dynamic palettes. Best when one colour leads and the others accent.

Monochromatic

Dark, mid, and light steps on the same hue — a failsafe gradient for trim, walls, and accents without shifting colour family.

Brand Matches

Perceptually similar colours from across all brands in our database.

  • Blue Suede Shoes

    Benjamin Moore · 798

  • Southern Blue

    Behr · S-G-590

  • Blueberry Hill

    Benjamin Moore · 812

  • Flashy Sapphire

    Behr · P520-7

  • Award Blue

    Behr · 590B-7

  • Frank Blue

    Sherwin-Williams · SW6967

Lighting

See how this colour shifts across natural and artificial light conditions.

  • Natural
  • Morning
  • Afternoon
  • Evening
  • Overcast
  • 2700K
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  • 5500K