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Two lamps can be exactly the same shape and still make a room feel completely different — because of colour temperature. Get it right and your home feels warm and cohesive; get it wrong and it can feel cold, or oddly mismatched from room to room. Here's what you need to know.
What colour temperature means
Colour temperature is measured in Kelvin (K). Lower numbers are warmer and more golden; higher numbers are cooler and more blue-white. As a quick guide:
- 2700K – 3000K (warm white): soft and cosy, like a traditional bulb. Best for living rooms, bedrooms and dining areas.
- 3500K – 4000K (neutral white): clean and balanced. Great for kitchens, bathrooms and home offices.
- 5000K+ (cool / daylight): crisp and energising, but can feel clinical at home. Best kept to garages, laundries and detailed task areas.
The golden rule: stay consistent within a room
The most common lighting mistake is mixing temperatures in the same space — a warm lamp next to a cool downlight makes both look wrong. Pick one temperature per room and stick to it across all your fixtures. Your eye will read the space as calm and intentional.
Match the mood to the room
Think about what each room is for. Bedrooms and lounges are for winding down, so lean warm. Kitchens and workspaces benefit from a neutral white that keeps you alert and shows colours accurately. If you love a room to feel snug at night but practical by day, choose warm-white fixtures on a dimmer.
Don't forget the CRI
Colour Rendering Index (CRI) measures how true colours look under a light, on a scale to 100. A CRI of 90 or above keeps your walls, food and furnishings looking natural — well worth looking for when you buy.
All ONYLOOM fixtures are chosen with warm, liveable light in mind. Browse the full collection, or email contact@onyloom.com if you'd like a recommendation.