The 60-30-10 rule: the timeless key to visual harmony

In the world of interior design, there are countless rules, trends, and sources of inspiration. Yet one timeless principle transcends them all — the 60-30-10 rule.

Simple at first glance, it holds remarkable power: the ability to structure a space visually, create balance without heaviness, and achieve cohesion without monotony.

A magic formula for visual balance

The 60-30-10 rule is based on a well-established ratio for colour distribution within a space:

• 60% dominant colour

• 30% secondary colour

• 10% accent colour

  
  

This principle, long used in architecture, graphic design, and fashion, translates beautifully into interior design. Why? Because it offers structure, prevents visual overload, and ensures a balanced palette — even when bold tones are introduced.

60% – The dominant colour: your visual anchor

This is the foundation of your room — the hue that envelops the space and sets the tone for the overall atmosphere. It typically appears:

• On walls or large surfaces (ceilings, floors),

• On statement furniture such as a sofa or built-in bookcase,

• Or even through curtains or a large area rug, if these dominate the view.

  
  

Choose a colour that reflects the desired mood: soft and neutral for a calming cocoon, or deeper tones for a warmer, more dramatic feel. The key is timelessness and balance — since this colour occupies most of the space.

30% – The secondary colour: creating rhythm and depth

The secondary shade complements the dominant one, adding contrast and structure without overwhelming the room. It often appears:

• On accent furniture such as armchairs, side tables or consoles,

• Through curtains, rugs, or an accent wall,

• Or via materials — wood, metal, fabric.

  
  

The relationship between these two tones is crucial. They should respond to one another without competing, like instruments in harmony. The contrast can be subtle (light grey and slate blue) or bolder (beige and forest green), depending on your taste and daring

10% – The accent colour: your personal signature

This is the finishing touch — the note that draws the eye and brings life to the space. It may be minor in quantity, but it has a powerful visual impact. Accent colours often appear through:

• Cushions, throws, vases, or lighting,

• A striking artwork,

• Or a decorative object or statement chair.

  
  

Here, you can be playful and expressive: mustard yellow in a neutral setting, Klein blue to energise a calm interior, or terracotta to warm up a contemporary space. The accent colour awakens the composition — never disrupts it.

Why does it work so well?

Because our eyes naturally seek balance. Too many colours create cognitive overload; too few, visual monotony. The 60-30-10 rule establishes a colour hierarchy where every element has a purpose and a place.

It’s a simple yet powerful tool to avoid design missteps — and to gain confidence in your decorative choices. Even better, it adapts effortlessly to all styles: minimalist, bohemian, Scandinavian, industrial, or classic.

How to apply it at home

• Start with a visual inventory of your space: what colours already dominate?

• Build your palette around a strong, cohesive tone that complements the room’s natural light.

• Play with textures — linen, velvet, raw wood, brushed metal — to add depth and richness.

• Test before committing: use moodboards, paint samples, or 3D simulators to visualise your balance.

  
  

In conclusion: harmony made simple

Applying the 60-30-10 rule means balancing your interior without sacrificing creativity. It offers a framework — one you can then bend or break with intention — to express your personality through a refined, lasting aesthetic.

At Chadele Interior Design, we apply this principle with subtlety, designing interiors that are both functional and emotional.

Ready to transform your space into a harmonious, inspiring home?

📩 Get in touch for a bespoke consultation: chadeleinterior@gmail.com