Before You Choose a Paint Colour, Ask These Five Questions
Colour is where most renovation decisions begin — far too often, where the first costly mistake is made. Not because people have poor taste, but because they start with the colour itself rather than the questions that should come before it.
Every week, my Instagram comments fill with the same questions. What colour is that wall? What white would work in my hallway? Why does my living room feel so dark even though I chose a light colour? These are good questions. But they are almost always being asked at the wrong stage.
The colour on someone else's wall tells you almost nothing useful about what will work in your space. Light, orientation, fixed materials, ceiling height, the way you use a room and the way you want to feel in it — these are the variables that determine a colour's success. The shade itself is the last decision, not the first.
Here are the five questions I work through before recommending, choosing, or even seriously considering a colour for any space.
Question One
Which direction does this room face, and what does its light actually do?
This is where every colour conversation should begin. The orientation of a room determines the quality, temperature, and consistency of its light — and light is what your paint colour is in conversation with, all day, every day.
In Australia, north-facing rooms receive indirect, cooler light throughout the day. South-facing rooms get the most direct sunlight and the warmest, most golden light. East-facing rooms are bright in the morning and dim by afternoon. West-facing rooms do the opposite.
This matters because the same colour will look entirely different under different light conditions. A warm, creamy white that glows beautifully in a south-facing bedroom can look flat and slightly yellow in a north-facing hallway. A cool, sophisticated grey that reads perfectly in a bright living room can turn cold and unwelcoming in a room without direct sun.
"The colour on the wall is always a collaboration with the light in the room. Choose one without understanding the other and you're guessing."
Before you open a fan deck, observe your room at different times of day. Morning light, midday light, afternoon light, evening light with lamps on. Photograph it at each stage and look at the images side by side. The character of your light will become very clear, and with it, the range of colours that will actually work.
Question Two
What are the undertones of everything already fixed in this room?
Paint colour does not exist in isolation. It lives in permanent conversation with your floor, your cabinetry, your joinery, your ceiling, and every other fixed surface in the room. The question is not simply what colour you like, but what colour works in this specific material context.
Start by identifying the undertones of your fixed materials. Timber floors, for instance, can range from cool and grey-toned to warm and orange-toned, and everything in between. White tiles might carry a cool blue undertone or a warm cream one. Stone benchtops might lean green, pink, or grey. Each of these has an undertone that your wall colour either harmonises with or fights against.
The most common mistake I see is choosing a wall colour in isolation, falling in love with it on a chip or in a photograph, and bringing it home only to find it looks wrong. It isn't wrong. It simply has an undertone that conflicts with something already in the room.
A Practical Note
Gather physical samples of your fixed materials before you shortlist colours. A tile off-cut. A piece of flooring. A cabinet door if you can. Hold your paint shortlist against these and the undertone relationship will reveal itself immediately. This is exactly what designers do when specifying a project, and it saves an enormous amount of second-guessing.
Question Three
How do I want this room to feel?
This question sounds soft. It is anything but. The atmospheric quality of a colour, how it makes a room feel to inhabit, is one of the most important considerations in any selection decision and one of the most frequently skipped.
Before you look at a single colour, write down three words that describe how you want this room to feel. Calm. Enveloping. Energising. Sophisticated. Warm. These words become your brief, and your brief is more useful than any Pinterest board.
Colour psychology is not abstract. Darker, more saturated colours advance walls, creating enclosure and intimacy. Lighter, more recessive colours expand space and lift ceilings visually. Warm tones create a sense of welcome and conviviality. Cool tones feel restful, considered, and slightly formal. Understanding the emotional register of a colour family before you choose a specific shade is the work that makes the final decision almost obvious.
"The best rooms are designed around a feeling first. The colour palette follows from that, not the other way around."
Question Four
How does this colour need to relate to the rest of the home?
A home is experienced as a sequence of spaces, not a series of isolated rooms. The colour in your hallway is the first impression of every other room. The transition from your living room to your kitchen should feel considered, not accidental.
This doesn't mean every room needs to be the same colour. But it does mean every colour needs to be in conversation with its neighbours. The most elegant homes I have featured in the Alira archive have a coherent material and colour language throughout. It is rarely obvious or deliberate-looking. It simply feels right, because someone thought about the whole before they committed to the parts.
When choosing colour for any individual room, look at the spaces it connects to. What colour is the adjoining hallway? What flooring runs through from one room to the next? Where the same floor continues, the same undertone family in your wall colours will create a sense of flow that feels natural and unforced.
A Practical Note
If you are colouring multiple rooms at once, start with the space you use most and work outward. Choose that colour first, then let it anchor the decisions that follow. The palette will build itself far more easily when it has a centre of gravity.
Question Five
Have I tested this colour at scale, in this room, in this light?
This is the question most people answer with "not yet" and then paint the whole room anyway. It is also the question whose answer is responsible for the vast majority of paint regrets.
A colour chip is approximately four centimetres square. Your wall is several square metres. At wall scale, a colour becomes significantly more present than it appears on a chip. Subtle undertones that were invisible on the sample become the dominant impression on the wall. A colour that looked soft and sophisticated in the store can read as overwhelming in your actual space.
The only reliable test is to paint a large swatch directly on your wall, at least A3 in size, in two different locations: one in direct light and one in shadow. Then leave it there for several days. Look at it in the morning. Look at it in the evening with artificial light. Look at it when you walk past it without thinking about it. The colour that still feels right after all of that is your colour.
Sample pots cost very little. The time investment is three to five days of observation. The alternative is repainting an entire room. The maths is straightforward.
Colour selection is rarely about finding the perfect shade. It is about understanding the conditions in which any colour will live. Light, material context, atmosphere, relationship to neighbouring spaces, and scale testing. These are the five lenses through which designers approach colour, and they are the reason a designer's recommendations tend to work when a homeowner's intuitive choice doesn't.
None of this requires formal training. It requires patience, observation, and a willingness to ask the right questions before you reach for a brush. The homes that feel truly considered are almost always the ones where someone slowed down at this stage.
If you want to go deeper on any of these, my free colour guide walks through each consideration in detail, with specific guidance on how to read undertones, test at scale, and build a whole-home palette that flows.
Sarah x
Want to go further with colour?
The free Alira Colour Guide walks through each of these five questions in depth, with specific guidance on reading undertones, testing at scale, and building a whole-home palette. Delivered to your inbox immediately.