Swatchd
Sign inGet started
Mid-Century ModernSouth-Facing

Blue Iolite

Behr · MQ4-25

The Analysis

Blue Iolite is a mid-tone blue with a medium LRV of 20.71, meaning it absorbs a fair amount of light rather than reflecting it. This creates a cozy, contained atmosphere that makes large, cavernous rooms feel more intimate and grounded.

It works best as a bold, saturated accent wall or for cabinetry to anchor a kitchen or home office. As a full-room paint, it creates a moody, high-impact environment rather than a neutral backdrop.

LRV 21

History & Origin

This is a modern, clean-lined colour that leans away from traditional period palettes. It fits perfectly into contemporary designs that favor strong, saturated hues over muted, historical grays.

Undertonecool
FamilyBlue

How to Use It

Pair this with warm walnut wood tones or matte black hardware to balance the coolness of the blue. It is an ideal candidate for a den or a dedicated office space where you want to define the room's purpose.

The Mood

This shade provides a sense of focus and stability, making it an excellent choice for areas where you need to concentrate or wind down. It feels restful and professional, lacking the chaotic energy of brighter, neon-adjacent 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.

  • Blueberry Icing

    Dulux

  • Blue 19

    Lick · Blue 19

  • Parkwater 0612

    Colourtrend

  • Watertown

    Benjamin Moore · 818

  • Waterdrop

    Benjamin Moore · CC-902

  • Cobalt Glow

    Valspar · 8001-45F

Lighting

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

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