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IndustrialSouth-Facing

Celestial Blue 3

Dulux

The Analysis

With an LRV of 13.79, Celestial Blue 3 is a deep, saturated shade that absorbs a significant amount of light rather than reflecting it. This makes the space feel more intimate and grounded, effectively pushing the walls inward to create a cozy, enclosed atmosphere.

Due to its intensity, this colour functions best as a high-impact accent wall or as a dramatic, full-room treatment in smaller spaces like studies or powder rooms. Using it on every wall in a large room may overwhelm the space unless the lighting is very bright.

LRV 14

History & Origin

This is a contemporary choice that leans into modern design trends. It moves away from traditional neutrals, offering a clean, sharp look that fits well in current architectural projects.

Undertonecool
FamilyBlue

How to Use It

Pair this with warm wood tones like walnut or teak to balance the cool blue, or use matte black hardware for a high-contrast, modern edge. It performs best in rooms with abundant natural light or layered artificial lighting to prevent the space from feeling like a cave.

The Mood

This is a serious, steady colour that promotes focus and calm. Because it isn't overly bright, it feels restful for the eyes, making it an excellent choice for areas where you want to signal that it is time to wind down.

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.

  • Glacier Lake

    Behr · S-G-530

  • Laguna Blue

    Benjamin Moore · 2059-30

  • Mayan Treasure

    Behr · P490-7

  • In the Mood

    Valspar · V071-5

  • Blue Ocean

    Behr · 550B-7

  • Deep Universe

    Valspar · 8002-42F

Lighting

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

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