I used myself as the subject here, and used the lift closed so as to only get the lighting from within the lift and no other sources. This is fluorescent light which is approx. 6000 degrees Kelvin, which is the scale used to determine the temperature of different light sources. Although this has a"cool" blue colour cast, this is because it is at the "white hot" end of the colour spectrum. The Kelvin scale is named after the scientist Lord Kelvin.
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