How to Choose a Paint Color for Any Room

The color on the paint chart and the color on your wall are rarely the same. Light, direction, size and the things already in the room all change how a paint looks. Here's a simple, reliable way to choose a color you'll still like a year from now.

Start with the light in the room

The direction a room faces changes everything, especially in the northern hemisphere (flip north and south if you live south of the equator):

Room faces	Light quality	What tends to work
North	Cool, even, slightly gray all day	Warm whites, creams, earthy and warm-based colors; cool grays can look flat
South	Warm and bright for most of the day	Almost anything; cool colors stay fresh, warm ones glow
East	Bright and warm in the morning, cooler later	Colors that look good in both: soft greens, warm neutrals
West	Cool in the morning, warm and golden in the evening	Colors that suit evening light: warm neutrals, terracottas, deep tones

Also think about when you use the room. A bedroom is mostly seen at night under lamps; a home office mostly in daylight.

Look at undertones, not just colors

Every neutral has an undertone. A "gray" can lean blue, green or purple; a "white" can lean yellow, pink or gray. Undertones are what make a color look wrong next to your floor or sofa.

To see them, hold a sample against a sheet of plain white printer paper. The undertone appears immediately. Then compare it with the things you're not changing: the floor, the kitchen units, a big rug or sofa. Choose a paint whose undertone sits comfortably with them.

Narrow it down to three

Pick no more than three candidates. More than that and every option starts to look the same. A good set is one safe choice, one slightly warmer and one slightly deeper.

Test properly

Tiny swatches lie. Test like this:

Use large samples. Paint sample boards or sheets of paper at least A4, better A3, with two coats.
Place them on different walls, including the darkest corner and the wall opposite the window.
Keep them away from the old color, or put a white border around them, so the existing paint doesn't distort what you see.
Look at them for two or three days, in the morning, in the afternoon and at night with your lamps on.
Check with the furniture in place. A color that looks great on an empty wall can clash with a sofa.

Use finish and depth on purpose

Matt hides wall imperfections and looks soft and modern, but older matt paints mark easily; look for a washable or scrubbable matt for living areas.
Eggshell or satin is tougher and easier to wipe, good for kitchens, bathrooms, woodwork and children's rooms.
Deeper colors make small rooms cozy, not smaller. A dark, enveloping color can blur the corners and make a small room feel intentional.
Paint the ceiling a lighter tint of the wall color, rather than stark white, for a softer, more finished look.

Three common mistakes

Choosing from a screen. Monitors and phones can't show paint accurately. Always test a real sample.
Choosing the color first and the room second. Start with the light and the things you're keeping.
Going too bright to "brighten" a dark room. A pure brilliant white in a north-facing room often looks gray. A warm white usually looks lighter.

Choose slowly, test properly and the color will feel like it was always meant to be there.

How to Choose a Paint Color That Works in Real Light