As with most interior design choices, when it comes to which light temperatures to use in a space, there are no definite rules. However, there are general guidelines based on what most people use certain spaces for.
Cool light contains more blue light and looks brighter to the eye, making it easier to see and work in the kitchen, garage, or make-up consoles. Warm light is more relaxing for the eyes and softens whatever it shines on, making it more comfortable for living rooms or the bedroom where a more relaxing atmosphere is needed.
In summary, cool lighting is better for practical uses, while warm light is best for living spaces. But again, this isn’t a rule, you could even mix light temperatures in a space. For example, warm light for a room and a cool spot light pointed at a work space in the room. Some modern lighting even allows you to adjust the temperature of the bulbs in a space as needed.