IndustrialSouth-Facing

Cool Dusk

Behr · 550F-4

The Analysis

Cool Dusk is a mid-tone grey-blue that absorbs significant light, making a room feel more intimate and grounded rather than expansive. Because of its LRV of 31.34, it will darken a space, which is useful for creating a cozy atmosphere but may make small, windowless rooms feel tight.

It functions best as a sophisticated backdrop for rooms where you want to emphasize furniture or art. It works well as a main wall color in bedrooms or studies, but it is often too heavy for use in every single room of a house.

LRV 31

History & Origin

This is a distinctly modern choice that avoids the traditional, saturated palettes of the past. It fits current design trends that favor muted, desaturated tones over primary or secondary colors.

Undertonecool
FamilyTeal

How to Use It

Pair this with warm wood tones like walnut or oak to balance the coolness of the blue. It also complements matte black hardware for an industrial edge or unlacquered brass for a classic, high-contrast look.

The Mood

Living with this color feels calm and composed, as it lacks the high-energy vibration of bright, saturated blues. It provides a stable, restful environment that works well for areas where you want to wind down at the end of the day.

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.

  • Nostalgia

    Valspar · 4007-6A

  • Blue Cascade

    Behr · UL230-17

  • Labrador Blue

    Benjamin Moore · CC-740

  • Summerhouse Blue

    Valspar · 4008-5C

  • Lake Okoboji

    Valspar · V108-4

  • Whipple Blue

    Benjamin Moore · HC-152

Lighting

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

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