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Choosing a white: undertones, light and finish

White is the most chosen colour and the hardest to get right. Small differences in undertone change everything.

November 9, 2026 · 4 min read

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Choosing a white: undertones, light and finish

Key takeaways

  • Every white has an undertone: yellow, pink, blue or grey.
  • The room’s light reveals that undertone.
  • Test several whites side by side on the wall.

The white families

  • Warm whites: cream or yellow undertone, for a welcoming feel.
  • Neutral whites: little visible undertone, versatile.
  • Cool whites: blue or grey undertone, for a crisp, modern look.

Depending on the light

In a north-facing room, a cool white can look greyish; a warmer white balances the light. In a sunny room, most whites work well.

Putting whites to the test

  • Paint three or four samples side by side, at least 60 cm (2 ft) wide.
  • Watch them in the morning, afternoon and evening.
  • Compare them to your trim, ceilings and floors.
  • Consider the room’s artificial lighting.

Walls, ceiling and trim

The ceiling white does not have to be the wall white. Many combine a flatter white on the ceiling and a glossier finish on trim, in the same tone or a neighbouring one.

Frequently asked questions

Which white makes a small room feel bigger?
A bright white with a high LRV, in a matte or eggshell finish, helps reflect light.
Why does my white look yellow or pink?
Because of its undertone, revealed by light and neighbouring colours. Test it in the room before deciding.

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