It does not matter at what colour temperature I photograph. One needs to control white balance in the camera.
When we look at objects with our eyes, we perceive white objects as white and grey as grey, no matter what sort of light source we are viewing. Our brain makes the conversion. We know the wall is white but do we notice it changes at sunset, when the room lights are on inside.
Modern cameras have AWB/automatic white balance. It does a good job, but not 100%. That is why one can do the correction ourselves to set the camera on a specific colour temperature. From candle to Fluorescent light. Colour temperature is measured in Kelvin’s. Formerly known as “degrees kelvin”.
5000 K is what we photographers call white light and represents “daylight”; 6000 K bright sunshine with clear sky; 9000 K open shade on clear day; 2500 K household light bulbs 1000 k candle light and oil lamp.