How to Build a Colour Scheme with the 60-30-10 Rule: A Step-by-Step Guide

What you need before you start

The 60-30-10 rule is a simple way to balance colour in a room. Three colours share the room in rough proportions: a dominant colour for about 60%, a secondary colour for about 30% and an accent colour for about 10%.^[1][2] It stops a room looking either flat or chaotic.

You need a notepad, a tape measure (see our guide to measuring a room), a phone camera, a few paint sample pots or large swatches, and about an hour.

One honest caveat before you start. The sources I consulted present 60-30-10 as a classic decorating trick, but none gives its origin or any test showing it works better than other splits, and Ideal Home itself says there are “no hard and fast rules”.^[1] Wikipedia’s article on colour theory notes that colour-harmony formulas of this kind have limited practical application.^[3] Treat 60-30-10 as a sensible starting point, not a law.

What the rule says

• Dominant, about 60%. The colour you see most: usually the walls and other large surfaces. It sets the mood and is often the quietest of the three.
• Secondary, about 30%. A second large element, such as a sofa, curtains, a rug, a floor or a feature wall. It supports the dominant colour and should differ from it, in hue or in lightness.
• Accent, about 10%. The strongest colour, used in small amounts: cushions, art, a lamp, a vase.

Two variants are commonly offered: 70-20-10 for a calmer room and 50-40-10 for a bolder one. In a neutral scheme the advice is that you still need at least one strong colour so the room does not feel empty.^[1]

Colour basics in four ideas

You can use the rule with no theory at all, but four ideas make choosing easier.

1. Hue is the colour family. Johannes Itten’s 12-colour wheel is the usual teaching model; he described seven kinds of contrast, including contrast of hue, of light and dark, and of warm and cool.^[4]
2. Value is how light or dark a colour is. Paint companies publish it as the light reflectance value (LRV), a percentage from 0 to 100.^[5] LRV is not the same as saturation, so a pale colour can still be strong in hue.^[6]
3. Temperature is whether a colour feels warm (yellow, orange, red) or cool (blue, green). Your lamps matter too: bulbs sold as warm are around 2,700–3,000 K, while cool white is above 5,000 K.^[7]
4. Context. Colours change next to each other. Michel Eugène Chevreul discovered simultaneous contrast in 1824 and published his book on it in 1839.^[8] That is why you must test a colour in its real setting.

How to build your scheme, step by step

1. List what is fixed. Floor, kitchen units, a big sofa, a view, a period fireplace. These are already part of the 60, 30 or 10, so work around them.
2. Choose the dominant (60%). Usually the walls. Pick a colour you can live with for years. In a dark room choose a mid-to-high LRV; in a bright room you can go lower.^[6]
3. Choose the secondary (30%). Pick a colour that differs from the dominant by at least a few LRV points, so the two do not blend. Analogous neighbours on the wheel are calm; a complementary pair is livelier.
4. Choose the accent (10%). The strongest colour. The complement of the dominant is a safe source; a single repeated colour works better than many.
5. Check the value. Take a photo of your samples and convert it to greyscale. If two of the three look the same grey, widen the gap.
6. Test in the room. Put large samples on two walls and look at them in morning, afternoon and evening, under daylight and your lamps. Farrow & Ball advises viewing colours in situ through the day, and notes that halogen and incandescent bulbs warm colours.^[9]
7. Rebalance. If the room feels too heavy, move to 70-20-10; if it feels bland, try 50-40-10.^[1]

Rule of thumb (not sourced): repeat each colour at least twice, in different places, so the eye reads it as deliberate rather than accidental.

Worked example: a 4.8 × 3.6 × 2.4 m living room

These sizes are invented for the exercise; the arithmetic is the method. The aim is to turn percentages into square metres so you know how much of each colour you need.

Step 1: measure the dominant surface. Wall perimeter 2 × (4.8 + 3.6) = 16.8 m. Gross wall area 16.8 × 2.4 = 40.32 m². Subtract a door (0.9 × 2.0 = 1.80 m²) and a window (1.2 × 1.2 = 1.44 m²) to get 37.08 m² of wall.

Step 2: work backwards. If the walls are the 60%, the whole colour field is 37.08 ÷ 0.6 = 61.8 m². That makes the secondary 30% = 18.54 m² and the accent 10% = 6.18 m².

Check. 37.08 + 18.54 + 6.18 = 61.80 m². The sums match, but remember that this is a guide to visual weight, not a survey: nobody will measure your curtains. If the room has a chimney breast or alcoves, treat them as part of the dominant colour unless you are painting them as a feature.

The ceiling is not counted here. Most people keep it pale, as part of the background; for colour options see ceiling colour ideas.

Check your scheme before you buy

Value test. Greyscale shows whether the colours differ in lightness as well as hue. In the illustration below the accent is clearly darker than the other two, while the dominant and secondary sit closer together, so a designer might lighten the secondary or darken the dominant if the two should read separately.

Contrast gap. Where a 30-point LRV difference is used as a guide for visual contrast, it comes from BS 8300:2018 for non-domestic buildings;^[5] it is a helpful benchmark, not a rule for homes. If you want two surfaces to read as clearly different, aim for a visible gap of that order, such as an LRV of 40 against 70.

Sample test. Look at samples on a vertical surface at the height you will see them, next to the floor and furniture. Wait for a grey day and a sunny one. Phone photos change colour, so judge by eye.

If the room faces north or south the same paint can look quite different; see our guide to paint colours for north-, south-, east- and west-facing rooms.

When to break the rule

The rule suits rooms with plain walls and mixed furniture. It is less useful where the walls, floor and furniture are all strongly patterned, where a single colour is the point, or where the building already fixes your colours, as in many period rooms.

• One colour everywhere. Painting walls, woodwork and ceiling the same colour is a different approach; see our colour drenching guide.
• Period colour. A Georgian or Victorian house often has its own palette; start with heritage colour palettes for period homes.
• Plaster details. A ceiling rose, cornice or pediment can carry the accent. See our fitting and painting page and the guide to the best paint for plaster details.

Common mistakes

• Treating the percentages as exact. They describe visual weight, not an area survey.
• Making the accent too large. A bold colour over a third of the room becomes a second dominant.
• Choosing paint from a screen or a small chip. Always test a large sample in the real room.
• Picking colours of the same value. They will blur together in photographs and in dim light.
• Ignoring the lamps. Warm and cool bulbs change how every colour reads.^[7]
• Forgetting the floor. It is a large surface and belongs in the 30% or the 60%.

Quick reference

One table to keep next to the sample pots.

Glossary

Terms used in this guide.

What to do next

Choose a dominant colour, buy two sample pots and test them for a week. Then pick the secondary and accent. When your colours are chosen, plan the lighting: our guide to layered lighting for a living room explains how lamps change what you see, and paint colours by room aspect helps with the direction of the light. For the proportions of the room itself, read how to use proportion and the golden ratio in a room.

Keep reading

• Paint colours for north-, south-, east- and west-facing rooms
• Colour drenching guide
• Heritage colour palettes for period homes
• Ceiling colour ideas
• Best paint for plaster details
• Layered lighting for a living room

Shop the look

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Frequently asked questions

What is the 60-30-10 rule?

A decorating guideline that divides a room’s colour into a dominant colour (about 60%), a secondary colour (about 30%) and an accent colour (about 10%).

Where does the 60-30-10 rule come from?

The sources I consulted call it a classic decorating trick but do not give an origin or any test of it. Colour-theory references note that harmony formulas of this kind have limited practical application, so use it as a starting point.

What should the 60% colour be?

Usually the walls and other large surfaces. Choose a colour you can live with for years; in a dark room a mid-to-high light reflectance value helps.

Does the ceiling count in 60-30-10?

Most guidance focuses on walls, furnishings and accents. Many people keep the ceiling pale as background; treat it as part of the dominant or leave it out, and be consistent.

Are there other ratios?

Yes. 70-20-10 gives a calmer room and 50-40-10 a bolder one. In neutral schemes the advice is to include at least one strong colour.

How do I check that my colours work together?

Photograph your samples and convert to greyscale to compare lightness, then test large samples on the wall in morning, afternoon and evening light, under your own lamps.

What is LRV?

Light reflectance value is the percentage of light a surface reflects, from 0 for black to 100 for white. It describes lightness, not how strong or saturated a colour is.

Can I use 60-30-10 in a period home?

Yes, but period rooms often have fixed colours in floors, joinery and fireplaces. Treat those as part of the 60, 30 or 10 and choose paint around them.