Wednesday Wivia?

I forgot to post this yesterday. No big deal. Instead of Tuesday Trivia, I'll just call this Wednesday Wivia.


Just some interesting factoids about colors:

• Blue is America's first choice for toothbrushes. Lilac is the runner-up.
  
• A spider's blood turns blue when exposed to oxygen.
• According to poetry experts, nothing rhymes with either of the words "orange" or "purple."
  
• A turkey has several flaps of loose skin around the head and neck that turn color depending on its mood. The flaps are called the "wattle" (on the chin), the "snood" (on the head and over the beak) and the "caruncle" (on the throat). Under calm conditions, these areas are pinkish-gray or blue; if the turkey is annoyed or mating, all these areas turn bright red.
• The original six colors of M&Ms were: brown, yellow, orange, red, green and violet. Violet was ousted in 1949 in favor of tan, which in turn was replaced in 1995 by U.S. voters' choice of blue.
• The color we know as cyan was once made from cornflower petals and was known as "corn blue." In the late nineteenth century the poisonous chemical cyanide was used
  to create "corn blue" dyes and pigments for commercial purposes. After a series of "cyan poisoning" deaths occurred in the silk flower industry, the color was discontinued. The name "cyan" was revived when color photography became popular.
  

There! Now don't you feel smarter? Oh, wait, now don't be rude! Feeling smarter because I'm a goof-ball doesn't count!

Do you have any color trivia?