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Mid-Century ModernSouth-Facing

Deep Blue Sea

Valspar · 5001-10C

The Analysis

Deep Blue Sea is a bold, saturated mid-tone blue that pulls visual focus toward the walls. With an LRV of 18.376, it reflects very little light, which creates a cozy, contained atmosphere and can make large rooms feel more intimate.

Due to its intensity, this color works best as a dramatic accent wall, cabinetry paint, or for a high-impact room like a library or powder room. Using it on every wall in a small room will make the space feel significantly smaller, which can be an intentional design choice for a 'jewel box' effect.

LRV 18

History & Origin

This is a modern interpretation of the bold, pigment-heavy palettes found in 20th-century interiors. It leans away from traditional Victorian or heritage aesthetics and instead fits the contemporary trend of using deep, solid colors to define specific architectural zones.

Undertonecool
FamilyTeal

How to Use It

Pair this color with warm wood tones like walnut or teak to balance the coolness of the blue. For hardware, matte black provides a sleek, monochromatic look, while unlacquered brass creates a sharp, high-contrast pop.

The Mood

This color is mentally grounding and promotes a sense of focus, making it an excellent choice for spaces where you want to feel settled rather than stimulated. Because it is a rich, stable blue, it feels restful and professional rather than frantic.

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.

  • Wishing Well

    Valspar · 5002-10C

  • Azure Fusion 3

    Dulux

  • Celestial Blue 4

    Dulux

  • Blue Plate

    Sherwin-Williams · SW6796

  • METAL BLUE

    Jotun · 5553

  • Tibetan Turquoise

    Behr · MQ4-53

Lighting

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

  • Natural