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Mid-Century ModernSouth-Facing

September Sea

Valspar · V100-1

The Analysis

September Sea is a deep, muted teal that absorbs a significant amount of light due to its low 15.089 LRV (Light Reflectance Value). Because it reflects so little light, it will make a room feel more intimate and enclosed rather than expansive or airy.

This color functions best as a moody, immersive backdrop or a bold focal point. It can overwhelm a small room if applied to all four walls, so it is often more effective on an accent wall or in a dedicated library or bedroom.

LRV 15

History & Origin

While deep teals are staples in modern interior design, this specific tone leans into a contemporary aesthetic. It avoids the stuffiness of traditional dark palettes, offering a sharp, modern alternative to standard navy or charcoal.

Undertonecool
FamilyGreen

How to Use It

Pair this color with warm wood tones like walnut or light oak to balance the coolness of the teal. For metals, stick to unlacquered brass for a classic contrast or matte black if you want a sharper, industrial finish.

The Mood

This is a grounding, restful shade that provides a sense of quiet stability. It lacks the jittery intensity of bright colors, 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.

  • Shaded Spruce

    Behr · 480F-6

  • Jack Pine

    Benjamin Moore · CC-660

  • Silver Pine

    Benjamin Moore · AC-21

  • Chelsea Garden

    Behr · MQ6-39

  • Agave Frond

    Behr · 490F-6

  • Micropolis 0472

    Colourtrend

Lighting

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

  • Natural