How to choose paint colours for your home with confidence

Knowing how to choose paint colours saves you from the familiar disappointment of a shade that looked perfect on the chart and wrong on the wall. Colour changes with light, with the objects around it and with the size of the room, so a good choice comes from testing in your own space, not from a tiny swatch.

This guide explains how light and undertones affect colour, how to build a palette, how to test samples properly and which finish to use where.

Start with how you want the room to feel

Before looking at colour cards, decide on the mood. Do you want a bedroom that feels restful, a kitchen that feels bright and lively, or a living room that feels cosy in the evening? Soft blues, greens and muted neutrals tend to feel calm. Warm yellows, terracottas and pinks feel welcoming. Deep shades like navy, forest green or aubergine feel enclosing and dramatic.

Think about when you use the room most. A room used mainly in the evening under lamplight can take richer, darker colours than one you mostly use in daylight.

Take your cue from what stays

It is much easier to match paint to fixed elements than the other way round. Look at flooring, kitchen units, tiles, a large sofa, curtains or a favourite rug or painting. Pick out colours from these items, or choose paint that sits comfortably alongside them.

Pay particular attention to wooden floors and furniture. Orange-toned wood can clash with some cool greys, while warm whites and earthy colours sit well next to it.

A little patience before you paint saves a second coat of regret.

Understand light: north, south, east and west-facing rooms

The direction a room faces changes how colour looks. In the northern hemisphere, the rules of thumb below are widely used; reverse north and south if you live in the southern hemisphere.

• North-facing rooms get cool, even light that can make colours look greyer. Warm-toned colours help balance it; very cool greys can feel cold.
• South-facing rooms get warm, bright light for much of the day. Most colours work, and cooler shades can calm the warmth.
• East-facing rooms are bright and warm in the morning and cooler later. Choose based on when you use the room.
• West-facing rooms are cooler in the morning and glow warmly in the evening, which suits warm colours.

Paint colour undertones: why whites and greys look different

Most colours, especially neutrals, have an undertone: a subtle hint of another colour underneath. A white might lean yellow, pink, blue or green; a grey might lean blue, green or purple. Undertones are why two whites can look completely different on the same wall.

To spot an undertone, hold the sample against a sheet of plain white paper, or compare several similar shades side by side. The differences become clearer by contrast. Choose undertones that suit your light and that match the undertones of your fixed features.

Light reflectance value and room size

Many paint makers publish a light reflectance value, or LRV, for each colour. It measures how much light a colour reflects, usually on a scale from 0 (absorbs all light) to 100 (reflects all light). A higher LRV means a lighter, brighter-looking colour.

In a small or dark room, colours with a higher LRV help bounce light around. That said, a small room will not become large with pale paint, and a deep colour can make it feel intentional and cosy. Choose the effect you prefer rather than fighting the room's size.

Use the 60-30-10 rule to build a colour scheme

The 60-30-10 rule is a simple interior design guideline for balance. About 60 percent of a room is a dominant colour, usually the walls; 30 percent is a secondary colour, such as furniture, curtains or an accent wall; and 10 percent is an accent, used in cushions, art and accessories.

Colour wheel schemes can help too. Analogous schemes use neighbouring colours, such as blue and green, for a calm, harmonious look. Complementary schemes use opposite colours, such as blue and orange, for contrast and energy. Monochromatic schemes use lighter and darker versions of one hue for a quiet, layered result.

How to test paint colours properly

Never choose from a small chip alone. Buy sample pots of your top two or three choices and paint large swatches, ideally at least an A4 sheet in size, or paint sample boards you can move around. Apply two coats so you see the true colour.

Place samples on different walls, including near the window and in the darkest corner, and away from the existing wall colour, which can distort your view. Look at them in the morning, at midday and in the evening under your own lamps over two or three days. The colour you still like at the end of that time is usually the right one.

Choose the right paint finish

Sheen affects how colour looks and how the wall wears. Flat and matt finishes hide imperfections and give a soft, rich colour, but are less washable, although many modern matt paints are made to be wipeable. Eggshell and satin have a slight sheen and are easier to clean, which suits kitchens, bathrooms, hallways and children's rooms. Gloss and semi-gloss are tough and shiny, best for doors, trim and furniture.

Finally, think about flow. Using one neutral across hallways and connecting spaces, then varying colours in individual rooms, helps a home feel coherent. Painting ceilings and woodwork in a consistent white or a pale version of the wall colour ties everything together.

Frequently asked questions

Choosing paint colours gets easier once you know what to look for: the mood you want, the features that stay, the direction of the light and the undertones of each shade. Build a balanced scheme, test large samples over a few days and pick a finish that suits the room's use. A little patience before you paint saves a second coat of regret.

How we research: Guides are written from established sources and checked for accuracy. They are general information, not professional advice.