How to Use the 60–30–10 Rule Like an Interior Designer

One of the questions we hear most often is: “How do designers make a room feel cohesive without everything looking too matched?”

The answer is usually hidden in a simple concept known as the 60–30–10 Rule. Think of it as a recipe for balance — it helps distribute colour throughout a space in a way that feels natural, layered and visually pleasing.

Step 1: Choose your 60% colour

Your 60% colour is the foundation of the room. This is typically the colour that occupies the largest surfaces:

• Walls
• Sofa
• Large area rug
• Curtains
• Built-in cabinetry

When selecting this colour, think about how you want the room to feel rather than which colour you like most. For a calm, timeless space, consider warm whites, soft greiges, sand tones, taupes or light earthy neutrals. For something moodier, a deep olive, charcoal or rich clay tone.

The key is that this colour should create a backdrop, not compete for attention. Ask yourself: “If I removed all furniture and decoration, would I still enjoy being surrounded by this colour?” If the answer is yes, you’ve likely found your foundation.

Step 2: Select the 30% supporting colour

Now it’s time to create depth. Your secondary colour usually appears through:

• Coffee tables
• Accent chairs
• Dining chairs
• Shelving
• Wood finishes
• Textiles

A good way to choose it is to take your dominant colour and move either darker or warmer. For example: warm beige pairs with walnut wood; soft greige with charcoal; cream with black metal; sand with dark oak; light taupe with chocolate brown.

This layer creates contrast without feeling dramatic. Think of it as the structure that gives the room definition.

Step 3: Add your 10% personality

This is the most exciting part. Your final 10% consists of accents that bring life and individuality to the space:

• Artwork
• Sculptures
• Decorative objects
• Books
• Cushions
• Flowers
• Ceramics

Because it represents only a small portion of the room, this colour can be much bolder than the other two. Terracotta, rust, emerald, navy, coral, mustard, burgundy — or even vibrant artistic colours — can work beautifully here.

This is also why artwork is so powerful. A single artwork can introduce the accent colour that ties the entire room together.

An easy formula anyone can use

If you’re standing in a room and don’t know where to start, try this simple exercise:

• Look at your largest piece of furniture — usually the sofa.
• Decide on the atmosphere you want. Calm? Sophisticated? Warm? Dramatic?
• Choose a foundation colour that creates that feeling.
• Add a secondary colour that contrasts gently — through wood, metal or upholstery.
• Let your artwork inspire the final accent colour.

Instead of asking “What art matches my room?”, try asking “What room would best showcase the art I love?” The second question almost always leads to a more interesting and personal space.

A real example

Imagine a living room with cream walls, a soft beige sofa and light linen curtains. These elements make up your 60%.

You then introduce a dark walnut coffee table, black metal lighting and a charcoal side chair. These become your 30%.

Finally, you hang a contemporary artwork in terracotta, blush and warm rust tones, and echo those colours with one ceramic vase, a cushion and a coffee-table book. Those accents become your 10%.

The result feels layered, intentional and connected — even though no two items perfectly match.

The GB Studio perspective

The 60–30–10 Rule isn’t about limiting creativity. It’s about creating enough balance that your personal style can shine. When the foundation is calm and the supporting elements are cohesive, artwork has room to become the focal point — and that’s often where the magic happens.

Because great interiors aren’t remembered for their sofas. They’re remembered for how they made people feel — and art is usually at the centre of that feeling.