Knowledge hub → Colour temperature

Warm white vs cool white, settled

Which Kelvin for which room — and why showrooms mislead.

Brand-neutral5-min read

Colour temperature is measured in Kelvin (K): low is warm, high is cool. It's the biggest lever on how a room feels.

2700KWarm / cosy 3000KWarm white 4000KNeutral 5000K+Cool / daylight

Room by room

RoomRecommended CCTWhy
Living / bedroom2700–3000KWarm, relaxing, flatters skin and materials
Kitchen (task)3000–4000KWarm ambient, neutral over worktops for clarity
Bathroom / mirror3000–4000KWarm room, neutral at the mirror for grooming
Home office / study4000KNeutral keeps you alert without feeling clinical
Garage / utility4000–5000KCooler = higher perceived brightness for work

Why the showroom misleads you

Showrooms use bright, cool light to make products pop. Judge a fitting as you'll use it at home — or choose tunable white and get both.

The one rule that never fails

Keep one colour temperature per sightline. Mixing 2700K and 4000K in one open space looks like broken bulbs.

Takeaways

  • Living/bedrooms: 2700–3000K. Task areas: 3000–4000K. Work spaces: 4000K+.
  • Never mix CCTs within one sightline.
  • Tunable-white lets a single room be both cosy and functional.

The free lighting guide gives fittings and CCT per room.

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