What is Correlated Colour Temp?
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Correlated Colour Temperature CCT (Kelvin, K)
Correlated Colour Temperature (CCT), measured in Kelvin (K), describes the visual appearance of white light, ranging from warm to cool tones. Lower CCT values (around 2,700–3,000K) appear warm, with a yellowish or reddish glow similar to candlelight or traditional incandescent lamps. Mid-range values (3,500–4,000K) are considered neutral and are common in offices and retail. Higher CCT values (5,000–6,500K) appear cool and bluish, similar to daylight at noon. CCT strongly affects how spaces feel: warm light creates a relaxed atmosphere, while cooler light feels more energising and enhances alertness.
Think: Warm = Cosy, Cool = Alert
