CoastalUniversal

Open Book

Valspar · 8001-40C

The Analysis

Open Book is a crisp, mid-tone blue that brightens a room without being overwhelming. With an LRV of 59, it reflects enough light to keep a space feeling open and airy, rather than heavy or enclosed.

It works best as a main wall color in spaces where you want a sense of clarity. Because it isn't too intense, it serves as an excellent backdrop for white trim and neutral furnishings.

LRV 59

History & Origin

This is a distinctly modern, fresh choice that avoids the heavy or moody characteristics of traditional historical palettes. It feels like a contemporary update to the classic seaside color schemes of the mid-20th century.

Undertonecool
FamilyTeal

How to Use It

This shade excels in bathrooms, kitchens, or home offices. Pair it with light oak or white cabinetry and matte black hardware to keep the look sharp and defined.

The Mood

This color provides a clean, calm, and predictable environment, making it easy to live with long-term. It leans toward a restful and organized feel, 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.

  • Holiday Blues 4

    Dulux

  • Bluebell

    Sherwin-Williams · SW6793

  • ENERGETIC BLUE

    Jotun · 5554

  • Sonic Sky

    Valspar · 4008-9B

  • Perfectly Blue

    Valspar · 4007-9B

  • Crisp Morning Air

    Benjamin Moore · 780

Lighting

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

  • Natural