Tommy Edison has been blind all his life, so he has no concept of color. Color is a measure of parameters he cannot perceive, but the connotations different colors have can be described. Red and green are pretty easy, as they are associated with fire and nature, but the other colors are difficult. Some of these people at Vidcon 2014 get rather imaginative in their descriptions -especially the guy associating the marbled colors in the carpet with a physical sensation. -via Tastefully Offensive
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