Quoting Stacy Sterling
Jan from TLG asked us to share this news with our LUG, the short version of the message is below:
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Dear all, finally, after many years of discussion we got the go from our Design Lab to share the internal LEGO Color scheme with the LEGO Community.

You can see on the scheme the internal LEGO color number and name.

I feel this is a kind of milestone in the contact between the LEGO Company and the LEGO Community and will ease the communication about the colors tremendously.

Jan
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Here is a link to the color palette via Brick Journal (http://www.brickjournal.com/view/article/23/)- you can also download the PDF from the Brick Journal site.

~Stacy