According to Wikipedia (as of 7-31-15) currently 7 artificial colors are permitted in food.

Color                           In Short what we know about it

FD+C Blue #1………… is made from Petroleum

FD+C Blue#2………….is harmful when inhaled and is a skin and eye irritant

FD+C Green#3………Grows tummors in animals

FD+C Red#3………….High doses do cause cancer in rats

FD+C Red#40…………banned in Belgium, France, Sweden, Switzerland because it’s safety is    highly controversial in possible health effects.

FD+C Yellow#5………people with asthmatics & Aspirin intolerance are venerable to allergic reactions

FD+C Yellow#6……….is made from Petroleum

Some Forking Truth about Artificial Food Coloring

The Forking Truth

Information was read from Wikipedia and BeFoodSmart.com.