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IndustrialSouth-Facing

Deep Fossil

Dulux

The Analysis

Deep Fossil is a mid-tone grey that absorbs a fair amount of light due to its 27.77 LRV, meaning it will make a space feel more enclosed and intimate rather than bright and expansive. It creates a solid, grounded backdrop that pulls the walls in slightly, making large rooms feel more proportionate and cozy.

This colour works best as a sophisticated main wall choice or a heavy accent wall. It is excellent for creating a seamless, monochromatic look, but it is often too saturated to use in small, windowless rooms where you want to maintain a sense of space.

LRV 28

History & Origin

This is a distinctly modern choice that avoids the ornate or traditional feel of period-specific palettes. It fits perfectly into contemporary interior design where the focus is on clean lines and structured, neutral living spaces.

Undertoneneutral
FamilyNeutral

How to Use It

Use this in bedrooms or media rooms where you want to control light. Pair it with light oak wood tones to soften the grey, or use matte black hardware to highlight the industrial, sharp edge of the paint.

The Mood

Living with this shade is a restful experience because it lacks the sharp, clinical glare of lighter greys. It provides a stable, neutral environment that feels professional and calm, which helps reduce visual clutter in high-traffic areas.

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.

  • Grey Steel 1

    Dulux

  • INDUSTRIAL GREY

    Jotun · 5343

  • Cool Ashes

    Behr · N520-4

  • Plummett

    Farrow & Ball · 272

  • Wall Street

    Benjamin Moore · CSP-20

  • STEEL GREY

    Jotun · 9929

Lighting

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

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