Unconsciously the human eye adapts to different light conditions, while cameras need adjustment through white balance. The color temperature of different light sources is ­measured in Kelvin. 6500 Kelvin corresponds to the value of overcast daylight and is used as a standard for the neutral registration of white surfaces. 6500 is an essay film on the relativity of words, ­questioning the application of absolute values in an argument, visualized through a play on colors, their spaces, and their highly subjective perception. Quotes from Ludwig Wittgenstein’s “Remarks on Colour” ­emphasize this rhythmic flickering and slightly absurd ­conversation between colour and language.