Right in-between 3000K and 4000K is 3500K which we often refer to as neutral.
Cool white temperature. Cool White 4000K to 5000K is a cooler white that contains more blue light and gives a brighter feel best suited to bathrooms and offices. The temperatures are approximate and may vary widely. Cool White is for anyone who wants to make things pop.
These range from cool white to bright white with the higher temperatures starting to show a slightly blue tint. Soft White 2700K 3000K Bright WhiteCool White 3500K 4100K and Daylight 5000K 6500K. The warmth or coolness of light is known as its color temperature.
Try the colour slider below to learn more about colour temperature or have a look at our Wiki guide on colour temperature. At the far end of the scale daylight bulbs have a colour temperature of 6500K and are supposed to replicate the tone of light that the sun emits during the day. If a neutral white light is important to you look for color temperatures between 3100K and 4500K.
We have chosen 6000K for our line of Cool White LEDs as this temperature retains only a modest blue tint. A warm color temperature is typically 3000K or less. Anything more and we find color rendering and usability to be greatly sacrificed.
For example warm white for the main room lighting and cool white for task lighting over work areas. This has nothing to do with actual heat from a light bulb but only with the appearance of the light. It is referred to as Cool due to the heavy blue tint being reminiscent of a cloudy or winters day.
A low colour temperature creates a warm cosy light effect while a high colour temperature creates a cool more energising effect. Color temperature ranges from 4100K to 5500K is suggested. A cool white bulb commonly has a color temperature of 4000K and higher on the Kelvin scale.

