Iron Mountain
Behr · N520-5
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The Analysis
Iron Mountain is a deep, charcoal gray that absorbs a significant amount of light rather than reflecting it. Because of its low LRV of 17.77, it will make a room feel more intimate and enclosed rather than expansive or bright.
This is best used as a high-impact accent color or to define specific zones, such as a feature wall or custom cabinetry. If you paint an entire room in this shade, expect the space to feel moody and enclosed, which is a great look for studies or dens.
LRV 18History & Origin
This is a modern, sophisticated choice that moves away from the stark white trends of the last decade. While it doesn't align with traditional historical palettes, it fits perfectly into contemporary designs focused on depth and contrast.
How to Use It
Pair this color with warm wood tones like walnut or oak to prevent the space from feeling too cold. For hardware and accents, antique brass provides a nice contrast, while matte black keeps the look seamless and sleek.
The Mood
Living with this shade feels grounded, stable, and notably restful. It minimizes visual clutter, which makes it an excellent choice for bedrooms or media rooms where you want to signal to your brain 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.
Add harmony palette to a room
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Brand Matches
Perceptually similar colours from across all brands in our database.
Lighting
See how this colour shifts across natural and artificial light conditions.
- Natural
- Morning
- Afternoon
- Evening
- Overcast
- 2700K
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