Mid-Century ModernSouth-Facing

Office Blue

Valspar · 4005-6A

The Analysis

Office Blue is a mid-tone slate that pulls back from the walls, making a room feel more grounded rather than cramped. With an LRV of 29, it absorbs a significant amount of light, meaning it will darken a space rather than brighten it.

It works best as a primary wall color in a dedicated workspace or a library, where its depth creates a cozy, enclosed feel. It is also a high-performing choice for accent walls or cabinetry if you want to ground a larger, open-concept area.

LRV 29

History & Origin

This color mirrors the traditional 'den' or 'study' palettes common in mid-20th-century design. It moves away from the stark, cold trends of the past decade and leans into a more timeless, tailored aesthetic.

Undertonecool
FamilyBlue

How to Use It

Pair this with warm wood tones like walnut or teak to soften the cool blue, or use matte black hardware for a sharp, modern edge. It performs best in rooms with plenty of supplemental lighting, as it will look quite moody in dim corners.

The Mood

This shade provides a calm, focused environment, which is why it excels in areas where you need to minimize distractions. It feels steady and professional, offering a restful atmosphere that avoids the over-stimulation of brighter primary blues.

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.

  • Dyer's Woad

    Sherwin-Williams · SW9071

  • Blue 18

    Lick · Blue 18

  • Carnival

    Little Greene · 6154

  • Vast Lake

    Dulux

  • Lake Okoboji

    Valspar · V108-4

  • SOFT MASCULINITY

    Jotun · 4515

Lighting

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

  • Natural