A question we hear
Why does the same paint look warm in one room and grey, green or pink in another?
Paint is seen in context. Daylight direction, glazing, bulbs, flooring, timber and nearby colours can reveal an undertone that was quiet on the colour card.
Plain-language definitions
Terms used in this guide
- Undertone
- A quieter colour bias that becomes clearer when a paint is compared with nearby colours and materials.
- Metamerism
- When two colours appear to match under one light source but differ under another.
Technical facts
What can be verified
Product codes, dimensions, approved substrates, finish descriptions and application instructions should be checked against the current manufacturer label or technical data.
Professional judgement
What remains a recommendation
Colour relationships, atmosphere, visual balance and the order in which options are shortlisted are informed recommendations. They still need to be tested in the actual room or project.
Compare relatives, not isolation
Place warmer and cooler versions of a similar depth together. The comparison reveals undertone more reliably than looking at one sample against a white screen.
Follow the light
Review the sample in morning, afternoon and evening conditions. North-facing light is commonly cooler, but obstructions and reflected exterior colour can be just as influential.
Include fixed materials
Hold the shortlist beside flooring, stone, worktops, fabrics and joinery. A successful undertone should relate to the materials that will remain.