How To Choose Paint Colours, UK

The reliable way to choose paint colours is to test them properly in the actual room before you commit, because a colour on a small card or a phone screen tells you very little about how it will look on your wall. Buy sample pots of your shortlist, paint large patches, and look at them at different times of day and under your evening lighting rather than just once in passing. Almost every colour that disappoints was chosen from a tiny swatch and never tested at scale in the room it was meant for.

The reason testing matters so much is that a colour is not fixed. The same paint looks warmer or cooler depending on which way the room faces, how much natural light it gets, and what is already in the room reflecting onto the walls. A grey that looks smart in the shop can turn cold and blue on a north-facing wall, and a warm off-white can read pink or yellow depending on the light. Our team has been decorating across Kent for over 30 years, and the difference between a colour someone loves and one they repaint within a year is nearly always down to how it was tested, not the shade itself.

Test It Properly, Not From A Card

This is the single most useful thing you can do, so it is worth doing well.

In our experience, painting a large sample onto a piece of lining paper you can move around the room works better than brushing test patches straight onto the wall, because you can hold the same sample against each wall to see it in that wall’s light, and you avoid both a patchy result where the old colour shows through and a grid of test squares to paint over later. Paint two coats onto the sample so the colour is true, let it dry fully, and then look at it properly. Stand it against the wall by the window, then a darker corner, then next to your flooring and furniture.

Look at it in the morning, in the afternoon, and again in the evening with the lights on. A colour can look completely different under a warm white bulb at night than it did in daylight, and you live in the room at both times.

Which Way Does The Room Face

The direction a room faces changes how every colour in it reads, and it is the thing people most often overlook.

North-facing rooms get cool, indirect light for most of the day, which pushes colours cooler and can leave greys looking cold and flat and bright whites looking slightly grey or blue. Warmer shades, soft warm whites, gentle yellows and warmer neutrals, tend to counteract this and keep the room feeling comfortable rather than bleak. South-facing rooms get warm, bright light and flatter almost anything, so cooler colours like blues and greens stay balanced and strong colours look rich rather than heavy. East-facing rooms are warm in the morning and cooler by the afternoon, and west-facing rooms are cooler early and warm and golden in the evening.

None of this means a colour is wrong for a room, only that you should test it in that specific room’s light rather than trusting how it looked somewhere else.

Understand Undertones

Every colour has an undertone, and undertones are what make two colours that should go together clash.

Greys are the clearest example. A grey can lean blue, green or a warmer brownish greige, and two greys with different undertones sitting near each other look wrong even though both are grey. Whites run the same way, from cool blue-whites to warm creamy whites. We’ve found the colour people most often get wrong is grey, because a grey that looks neutral on the card can turn cold and blue on a north-facing wall, and a warm greige that looked beige in the tin can read distinctly pink once it is up and catching the light.

The way to avoid an undertone clash is to test your colour directly against the things it has to live with, the flooring, the worktops, the sofa or the tiles, rather than judging it on its own.

Start From What You Are Not Changing

It is far easier to choose a wall colour to suit a room than to make a room suit a wall colour.

From working with clients, the schemes that work best almost always start from the things that are not changing, the flooring, the kitchen worktops, a large sofa or a fireplace, rather than from a wall colour picked in isolation. Pull your colours from those fixed elements and the room holds together. Choose a fashionable wall colour first and then try to make everything else work around it, and you often end up fighting the things you cannot easily replace.

A simple way to keep a whole scheme balanced is to let one colour dominate, usually the walls, a second colour take the larger furnishings, and a third appear only as small accents. It stops a room feeling either flat or chaotic.

Colour, Light And The Size Of A Room

The old rule that light colours make a room look bigger and dark colours make it smaller is only half true, and it is worth being honest about.

A pale colour will not make a dark room feel bright if there is very little natural light reaching it, and it can look grey and lifeless instead. A deep colour in a small room does not simply make it feel smaller, it can make it feel intimate and deliberate, which is often exactly what a small snug or a downstairs cloakroom wants. Colour changes the mood of a room far more than it changes its apparent size, so it is usually more useful to think about how you want the room to feel than to follow a rule about light and dark.

Ceilings, Trim And Sheen

The colour on the walls is not the only decision. A brilliant white ceiling can look stark against soft or warm wall colours, and a warmer white, or a ceiling taken a shade lighter than the walls, often sits more comfortably. Painting the trim in the same colour as the walls gives a seamless, modern look, while a contrasting trim gives a more traditional, defined one.

Sheen matters too, because the same colour looks different depending on the finish. A higher sheen reflects more light and can look brighter and shinier while showing more of the wall’s imperfections, and a flatter matt looks deeper and more even. It is worth deciding the finish alongside the colour rather than as an afterthought. The paint itself plays a part as well, since the same shade can look richer or flatter depending on quality, because better paints carry more pigment and cover more evenly.

Older And Listed Homes

If you own a period property, colour is occasionally not entirely your own choice. External colour changes to a listed building, or in some conservation areas, can require consent, and there is good guidance on redecorating older homes worth reading before you commit to an external scheme. Older houses also tend to suit softer, less brilliant colours, which sit more naturally with original features than sharp modern brights.

Getting It Right

Choosing colours well is mostly patience. Test at scale, look in the room’s own light at different times, check the undertones against what is already there, and think about how you want the room to feel rather than chasing a trend. Do that and you rarely go wrong.

If you would like a professional eye on a scheme, or the decorating done once you have decided, our team at A-Z Decorators offers interior decorating throughout Kent, with over 30 years behind us, honest advice and a warranty on completed work. You can see finished rooms in our gallery, or get in touch for a free, no obligation quotation.