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IndustrialSouth-Facing

Breton Blue

Dulux

The Analysis

Breton Blue is a deep, muted slate blue that absorbs a significant amount of light due to its low 8.44 LRV. Because it pulls light inward, it will make a room feel more intimate and enclosed rather than spacious or bright.

Due to its intensity, it works best as a bold accent wall or in smaller rooms where you want to embrace a 'jewel box' effect. It also serves as a sophisticated alternative to charcoal or black for cabinetry and built-ins.

LRV 8

History & Origin

This is a versatile color that bridges the gap between classic heritage interiors and modern design. It carries the weight of traditional blue-grey historical pigments while fitting seamlessly into contemporary, moody aesthetic trends.

Undertonecool
FamilyBlue

How to Use It

Pair this with warm wood tones or brushed brass hardware to prevent the room from feeling too cold. It works beautifully in studies, powder rooms, or media rooms where you want a controlled, cozy atmosphere.

The Mood

This shade feels grounding and calm, making it an excellent choice for rooms where you want to wind down. It lacks the jittery energy of brighter colors, offering a stable, professional backdrop for daily life.

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.

  • Motor City Blue

    Valspar · 4005-4C

  • Twilight Chimes

    Behr · 560F-7

  • Newburyport Blue

    Benjamin Moore · HC-155

  • Midnight Shadow

    Valspar · 4004-4C

  • Hudson Bay

    Benjamin Moore · CC-810

  • Indigo Batik

    Sherwin-Williams · SW7602

Lighting

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

  • Natural
  • Morning
  • Afternoon
  • Evening
  • Overcast
  • 2700K
  • 3500K
  • 4000K
  • 5500K