If you’ve ever read anything about interior colour schemes, you’ve probably encountered the 60-30-10 rule. It’s the most widely cited formula in decorating, and for good reason — it works. But most explanations stop at ‘choose a dominant colour, a secondary colour, and an accent colour,’ which is a bit like saying ‘to cook a good meal, use good ingredients.’ Technically true. Not very helpful.
Let me show you how it actually works in practice, for the kinds of rooms Australians actually live in.
1. The Rule, Simply
- 60% of the visual weight in your room should be one colour or tone. This is your walls, ceiling, large furniture, and major textiles (bedding, curtains, large rug). It’s the backdrop. In most Australian homes, this is some form of white, cream, or light neutral.
- 30% is your secondary layer. This is where texture and warmth come in — timber, rattan, jute, linen in oatmeal or sand, leather, stone. It’s the material layer rather than a strict colour, and it’s what stops a predominantly white room from feeling sterile.
- 10% is your accent. This is the colour that gives the room its character. A soft blue cushion. A sage green ceramic vase. A piece of art with a muted ochre. It’s deliberate, controlled, and often the thing people notice first even though it takes up the least space.
2. Why It Works
The 60-30-10 ratio mirrors how our eyes naturally process space. The dominant colour creates calm because it’s consistent — our brains don’t have to work hard. The secondary layer adds visual interest without creating chaos. And the accent draws the eye to specific moments, creating a sense of intention and personality.
When rooms feel ‘off’ but people can’t articulate why, it’s almost always a ratio problem. Too many competing colours at equal weight (40-30-30) creates visual noise. Too little accent (70-25-5) feels bland. And too much accent (50-20-30) feels overwhelming.
3. How It Looks in Australian Styles
(A) Coastal
60% white and sandy neutrals: walls in Dulux Antique White USA, white linen bedding, sheer white curtains, light-toned major furniture. 30% natural textures and warm mid-tones: rattan bedhead, jute rug, timber bedside tables, linen cushions in oatmeal or sand. 10% coastal accents: one element in a muted ocean blue, one in a soft eucalyptus green, and ideally a touch of black or charcoal to ground the scheme (a matte black lamp, a charcoal-framed print). Without that grounding element, coastal can feel washed out.
(B) Modern Farmhouse
60% warm neutrals: walls in a creamy off-white, natural linen, wool. 30% timber and leather: the 30% does more heavy lifting here than in coastal. Richer, warmer timber tones (recycled hardwood, walnut), aged leather, woven wool, terracotta. 10% accent: olive green, burnt sienna, or deep mustard. The farmhouse palette references the Australian countryside rather than the coast — gum tree greens, dry grass golds, red earth.
(C) Collected/Eclectic
60% warm neutral base: this style needs a calm foundation because the interest comes from objects and layers. Warm white walls, natural flooring. 30% is where it gets interesting: a mix of timber ages and types, vintage brass, ceramic, glass, and varied textiles. 10% is distributed across multiple accent colours rather than one — a blue vase, a terracotta bowl, a green plant, a piece of art with pink tones. The accents feel gathered rather than coordinated.
4. The One Rule That Matters More Than the Numbers
The ratio is a guide, not a prescription. What matters is the principle: restraint in the dominant layer, warmth in the secondary, and personality in the accent. If your room feels somehow wrong, before you buy anything new, do a quick visual audit: photograph the room and squint at the photo. What percentage of what you see is the dominant colour? What percentage is texture and warmth? What percentage is accent? If the answer is anything close to equal thirds, that’s probably your problem.
And always, always include something dark to ground the scheme. Even in the lightest coastal room, a matt black lamp base, a charcoal frame, or a dark-stained timber tray stops the palette from floating away.
RELATED RESOURCES
→ See the 60-30-10 rule applied step by step in our Coastal Australian Bedroom Kit, including specific colour names and where to use each tone in the room.
→ Want help building a colour ratio for your specific room? A 30-minute colour consultation gives you a clear direction. Book here.