A tool to convert a temperature in Kelvin into a RGB colour
As an object heats up, it begins to emit light. Be sure to check out our demo of Blackbody Radiation for a more detailed overview of the way in which this works. In very brief terms, the hotter an object gets, the more high frequency radiation it emits. Sincle blue light has a higher frequecy than red light, it follows that hot objects will glow red, but very hot objects will glow white, or even bluish. Use the slider above to investigate how changing the temperature affects the colour of light it emits.
As with our Wavelength-Colour demo, this scale should be thought of as an approximation because how we perceive a colour depends on additional factors.