Choose a colour from a physical sample, in the room where it will actually be used. An image on a screen is a starting point for the conversation, not a final specification — a monitor emits colour while a wall reflects it. Agree the colour code and the finish before the full quantity is ordered.
How to build a short shortlist
Start from what stays in the room: flooring, doors, kitchen fronts and large furniture. Those surfaces cannot change colour, so they are what narrows the choice. Pick three or four candidates and label every sample with its manufacturer, product and code, because similar shades are easily confused with one another later.
Why a small card is not enough
A paint card is far too small to read a colour correctly, because the colours around it shift how it appears. Apply the sample over at least 1 m², in two coats, keeping about 30 cm clear of any other colour. A sample belongs on the wall itself rather than on a card held up against it.
How to compare in the room's own light
Live with the sample for at least 24 hours: morning, midday and evening light show the same colour differently. Switch on the lamps you normally use, since warm and cool bulbs shift the tone noticeably. If two walls are lit from different directions, put a sample on both rather than judging one and assuming the other.
What to record beyond the colour name
The specification should be precise enough that someone else could order the same paint:
- Manufacturer and product range.
- The exact colour code or tinting reference.
- Matte, satin or another agreed finish.
- Which walls, ceilings and accent areas take which colour.
- The approved physical sample and where it can be checked.
- The number of coats and the primer used.
How finish changes a colour
The same code looks different in matte and in satin: a sheen reflects light directionally and reads deeper, while a matte surface scatters it. This is why the finish should be chosen together with the colour rather than afterwards. The differences are set out in this guide to paint finishes and in the matte and satin comparison.
Why a light colour looks darker on a small sample
On a small patch a colour blends into the tones around it and reads more neutral. The same colour across a whole wall appears lighter and more saturated, because light bounces between the surfaces several times. That is exactly why a large sample is far more reliable than a card.
How to keep a record for future repairs
Save the product label, the colour code and the purchase reference — years later that is the information that reproduces the same tone. Ask how a local touch-up will be assessed, since a small repair often differs visibly from repainting a complete wall. A new wall is not washed during its first 28 days. Discuss a sample with the painter before selecting a decorative finish.
This general guide was prepared with AI assistance. Technical sources are linked in the text; the specific product instructions and an assessment of the property take precedence over general examples.
