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Re: about colors


From: Peter Dyballa
Subject: Re: about colors
Date: Mon, 22 Apr 2013 22:20:24 +0200

Am 22.04.2013 um 14:44 schrieb arnaudlaroulette@gmail.com:

> do anyone know how to get the RGB code for a light a 2700k??

If that's the surface temperature of a black body, then it would have, 
according to Wien's law, an emission peak at around 1,073 nm. This is infrared.

A star can be taken as a black body. Stars with such a low surface temperature 
are in the spectral class M. Examples are Antares (3,400 K) or Proxima Centauri 
(3,040 K). Both are quite reddish or orange.

Wikipedia offers this scale: 
http://upload.wikimedia.org/wikipedia/commons/b/b5/Blackbody_sRGB_energy-units.png.
 2,700 K is represented by a colour of

        #FFBA69 = 255 186 105

(according to my screenshots programme)

A bit of googling reveals:

http://www.tannerhelland.com/4435/convert-temperature-rgb-algorithm-code/
http://www.vendian.org/mncharity/dir3/blackbody/UnstableURLs/bbr_color.html
http://www.vendian.org/mncharity/dir3/starcolor/
http://www.easyrgb.com/index.php?X=CALC

--
Greetings

  Pete

One of the main causes of dust is janitors.






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