Free lighting colour temperature visualiser
Lighting colour temperature visualiser.
Upload a project image, move the Kelvin slider and compare warm white, neutral white and cool white lighting before choosing commercial luminaires.
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Colour temperature and application
Use the visualiser before fixing the CCT.
Colour temperature changes how a space feels, but it should be considered with glare, optics, control gear, daylight, surface finishes and the product range being specified.
Warmer CCTs are usually reviewed for hospitality, receptions, lounges and softer commercial interiors. Compare them with hotel and hospitality lighting where atmosphere matters.
4000K is a common starting point for offices, education and general commercial interiors. Use it with office lighting and UGR19 office lighting when desk work and glare are important.
Cooler appearances can suit some technical, inspection or industrial areas, but they can feel stark in everyday interiors. Compare with warehouse and industrial lighting before specifying them broadly.
Colour appearance affects how people perceive brightness, alertness and comfort. For workplaces, review CCT alongside dimming, daylight and controls rather than treating the Kelvin value alone as human-centric lighting.
The same CCT can feel different once dimmed or controlled by scenes. Compare the result with lighting controls, especially for hospitality, meeting rooms and multi-use spaces.
Use the image as a discussion aid, then compare commercial downlights, linear lighting, LED panel lighting and track spotlights.
Related visualiser
Need to compare fitting finishes as well? Use the RAL colour visualiser to check powder-coated luminaire finishes before requesting product options.
Specification context
Choosing a colour temperature for commercial lighting.
Colour temperature describes whether white light appears warmer or cooler. The visualiser helps compare that shift on the same photograph, but the screen preview is only a guide: camera white balance, monitor settings, daylight and surrounding finishes all affect what you see.
3000K for a warmer atmosphere
Warm white light is often considered for hospitality, reception, lounge and customer-facing areas where comfort and material colour are important. Check it against the actual finishes and the way the space is used.
4000K for a neutral working appearance
Neutral white is a common starting point for offices, education, circulation and many industrial areas. The final choice should still account for glare, colour rendering, illuminance and consistency with adjoining spaces.
Do not select CCT in isolation
A good result also depends on luminaire distribution, output, mounting position, surface reflectance, controls and emergency requirements. Use a sample or mock-up where appearance is critical, then confirm the specified CCT across the complete product schedule.
Ready to move from preview to specification?Send the room type, photographs, ceiling information and preferred atmosphere through specification support. The team can then match colour temperature with an appropriate commercial luminaire rather than treating the preview as a finished lighting design.