Colour variation in lighting is known as “colour temperature” and is measured in degrees Kelvin. The colour temperature scale ranges from at one extreme a candle flame (approximately 1,900K) to a deep blue sky (approximately 10,000k). The chart below illustrates a number of key lamp types and where they appear on the colour temperature spectrum.
|Colour Reference||Colour||Colour Temperature||CR1 Ra|
|Colour 827||Very Warm Triphosphor||2700||85|
|Colour 830||Warm White Triphosphor||3000||85|
|Colour 835||White Triphosphor||3500||85|
|Colour 840||Cool White Triphosphor||4000||85|
|Colour 865||Daylight Triphosphor||6500||85|