Why does red fade so easily outdoors?
November 15, 2010 10:44 PM Subscribe
On signs and other media shown outdoors, why does the color red seem to fade the fastest?
posted by Hither to Science & Nature (7 answers total) 3 users marked this as a favorite
In a variety of places, such as signs, advertisements painted on buildings, posters, etc., it always seems like pure-red color is the first to fade, before any other color.
Is there any photochemical reason for this? Does red just absorb UV better than other colors just by being red? Or is there some specific dye or pigment frequently used for red that isn't light-fast?