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All four familiar decorating rules can be broken successfully: paint a small room a dark colour, combine blue with green, replace perfect symmetry with another form of balance, and mix furniture instead of matching every piece. The difference between intentional design and visual confusion is understanding what each rule is trying to achieve, then choosing a clear alternative.
Laura Barry’s article “4 rules about style that are made to be broken,” published by Better Homes & Gardens Australia on October 31, 2019, treats these ideas as editorial decorating guidance rather than measured design research. Its useful principle is simple: learn why a convention exists before deciding whether it helps your room.
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The four conventions—and the design result behind each one
| Common rule | What the rule is intended to achieve | Deliberate alternative |
|---|---|---|
| Small spaces should be painted white. | A white or otherwise light colour can give a room the illusion of more space. | Use a dark colour to create depth and an inviting atmosphere. |
| Blue and green should never be seen together. | Avoid a combination traditionally considered clashing. | Use both colours as a purposeful, committed palette. |
| Create symmetry in a room. | Matching arrangements can produce visual balance. | Build balance around a focal point or through related shapes, sizes or visual weight. |
| Furniture must match. | Identical pieces can make a room look uniform. | Choose different pieces that share a coherent style or design language. |
Breaking a rule does not mean ignoring proportion, colour relationships or the way people move through a room. It means selecting a different route to the same underlying result: a room that feels balanced, cohesive and intentional.
1. Small spaces do not have to be painted white
White and other light colours are a familiar recommendation for compact rooms because they can create an illusion of space. That approach remains useful when you want a bright, visually open effect. It is not the only option, however. Barry’s alternative is a dark colour that adds depth and can make a small room feel large and inviting when it is used deliberately.
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When a dark wall can be the better choice
A dark colour can make the walls feel like a defined envelope rather than a limitation. In a snug reading room, dining area or bedroom, that sense of enclosure may be more welcoming than an attempt to make the room appear airy. The point is not that dark paint always enlarges a room; the point is that depth and atmosphere are valid goals alongside visual openness.
Plan the colour before opening the paint
- Name the effect you want. Decide whether the room should feel airy and light, enveloping and calm, dramatic, or intimate. This choice determines whether the conventional light-colour approach or the rule-breaking dark approach serves the room.
- Identify the room’s visual anchor. A fireplace, bed wall, dining table, artwork or architectural feature can provide a focal point. A dark colour may support that feature across one wall or throughout the room, but the decision should be consistent with the focal point rather than competing with it.
- Check the surrounding palette. Look at flooring, curtains, upholstery, timber, metal finishes and adjoining rooms. A dark colour is most convincing when the rest of the scheme appears to belong with it, not when the wall is an isolated experiment.
- Test the commitment level. If painting every wall feels too strong, begin with the wall that carries the room’s main activity or focal point. If the intention is a fully enveloping room, stopping at one wall may look accidental; commit to the chosen extent.
- Review the result in the room. A colour that looks appealing on a small sample can read differently across a large surface. View the test alongside the actual furnishings and finishes before completing the room.
| Approach | Intended visual effect | Best question to ask |
|---|---|---|
| White or another light colour | Illusion of greater openness | Do I want the room to feel brighter and less enclosed? |
| Dark colour | Depth and an inviting, enveloping mood | Would a stronger boundary make the room feel more purposeful? |
Common mistakes with the dark-colour rule break
- Choosing a dark colour without a reason: If the rest of the room is undecided, the wall can look like an afterthought. Define the mood and focal point first.
- Using one dark accent in an otherwise unrelated scheme: Repeat the colour or its visual weight in furnishings, artwork or accessories so the wall has a relationship with the room.
- Assuming “dark” means only black: The advice concerns depth, not one specific hue. A deep version of a colour already present in the room can be a more coherent choice.
2. Blue and green can work together
“Blue and green should never be seen” is an old saying, not a requirement for a contemporary room. Barry’s advice is to combine the colours when the pairing looks purposeful rather than accidental—and to commit to the look.
Make the relationship visible
A blue wall with a single unrelated green object can look accidental because the connection appears only once. A deliberate palette gives the eye more evidence: one colour can lead on the walls while the other appears in upholstery, art, textiles or smaller painted surfaces. The exact proportions are a design choice; what matters is that the colours look like parts of one decision.
Build a blue-and-green scheme step by step
- Choose the lead colour. Decide which colour should occupy the largest visual area, such as the walls, a sofa or a rug.
- Assign the supporting colour. Use the second colour in several considered locations rather than scattering it randomly. Repetition helps the pairing read as intentional.
- Connect the two with a shared quality. Similar intensity, a related muted or vivid character, or a repeated neutral around both colours can make the relationship feel designed.
- Remove competing accents. If every accessory introduces a new strong colour, the blue-green decision loses clarity. Edit items that do not support the palette.
- Check the view from adjoining spaces. The combination should make sense from the doorway and from nearby rooms, especially if the painted room is open to a hall or living area.
When to stop
The rule is broken successfully when a visitor can see the colour relationship without needing it explained. If the room feels busy, reduce the number of competing colours before abandoning blue and green. A simpler arrangement with one dominant colour, one supporting colour and restrained neutrals usually communicates the intention more clearly than equal-strength colour everywhere.
3. Symmetry is one route to balance, not the only route
Matching side tables and lamps on either side of a sofa are a straightforward example of symmetry creating visual balance. Symmetry is easy to read, easy to repeat and often calming. It is not a requirement for a room to feel settled.
Use a focal point as the organizing device
Instead of mirroring objects around a centre line, arrange furniture around the feature you want people to notice: a fireplace, artwork, window, dining table or conversation area. The arrangement can be asymmetrical while still directing attention and distributing visual weight around that anchor.
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Balance unlike pieces by relating their visual weight
Barry’s alternatives include pieces with a similar feel, shape or size. That does not mean every object must be identical. A substantial chair can balance a smaller table when the grouping has comparable presence; a tall lamp can offset a broad piece of art when the overall composition feels stable. Judge the grouping from the main viewing positions rather than from a floor plan alone.
A practical asymmetrical arrangement process
- Mark the focal point. Identify the feature that should command attention.
- Place the largest item first. Position the sofa, bed, dining table or principal storage piece in relation to that focal point.
- Add a counterweight. On the opposite side, choose an object or group whose height, width, colour or density provides comparable presence without copying the first side.
- Check circulation. Leave a clear path through the room. A visually balanced arrangement that obstructs movement is not successful.
- View the composition at eye level. Sit where the room is normally used and assess whether one side overwhelms the other.
4. Furniture does not have to match
Matching furniture can create a uniform look, but uniformity is not the same as cohesion. The article’s example is a group of different French-style chairs that share a design aesthetic. Their differences provide character while the common style keeps the arrangement connected.
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Replace identical pieces with a shared design language
Look for a common thread: a period reference, silhouette, material, finish, upholstery character or overall mood. Two chairs can differ in shape while belonging to the same aesthetic. A side table and lamp can be different products yet feel related through proportion or finish. The goal is not random variety; it is a family resemblance.
Mix furniture without making the room chaotic
- Choose the room’s style direction. Define the broad character first—such as traditional, relaxed, formal or eclectic—without treating the label as a shopping checklist.
- Select one anchor piece. Let the sofa, dining table, bed or largest chair establish the strongest shape or material.
- Add variation deliberately. Introduce different chairs, tables or storage pieces that support the anchor’s aesthetic while avoiding duplicates.
- Repeat one or two unifying traits. Similar scale, a related finish, a consistent fabric family or a repeated curve can connect unlike pieces.
- Edit the outlier. If one item has no relationship to the others in style, size or visual weight, move it elsewhere or replace it. Mixing is not an excuse to keep every inherited piece in one room.
How to decide which rules to break
Breaking all four conventions at once can produce a lively room, but it can also create too many competing decisions. Use the following sequence to keep the design intentional:
- Start with the room’s problem. Is it too anonymous, too exposed, visually flat, or filled with unrelated furniture? Choose the rule that addresses that specific issue.
- Choose one primary departure. A dark wall, a committed blue-green palette, asymmetrical balance or mixed furniture can become the room’s defining move.
- Support it with quieter decisions. If the walls carry a strong dark colour, let furniture arrangement and accessories provide order. If the furniture is highly varied, keep the colour palette more controlled.
- Repeat the logic. A rule break should appear as a pattern of decisions, not a single surprise object. Repeat the colour, shape, style or visual weight that explains the choice.
- Remove anything that contradicts the intention. The final edit is often what makes an unconventional room look deliberate.
What “intentional” looks like in practice
- A small room painted a dark colour has furnishings and artwork that acknowledge the deeper, more enveloping mood.
- Blue and green appear in more than one considered location, so the combination reads as a palette rather than an accident.
- An asymmetrical seating arrangement still directs attention to a focal point and distributes visual weight across the room.
- Different furniture pieces share a design aesthetic, allowing variety without losing cohesion.
These are not measured performance claims or universal formulas. They are ways to apply the four alternatives described in Barry’s 2019 editorial advice while making the reasoning visible in your own room.
The bottom line
Use decorating rules as starting points, not laws. White paint can open up a compact room, but a dark colour may give it the depth and invitation you actually want. Blue and green can coexist when the pairing is purposeful. Symmetry can be replaced by focal-point planning and related visual weight. Furniture can differ while sharing an aesthetic. Understand the intended effect first, then break only the rule that stands between your room and that effect.
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