U.S. to Release New $10 Bills on March 2 - Yahoo! News
Not having a $20 on me I can't compare the colors. Once complaint I have heard from foriegners is our money all looks the same. If you look at the money from other countries each bill has a different color making it easy to identify them quickly.
I like the mention of the $2 bill, which you rarely see. My brother got one once and ended up taking it to the bank to get two 1s. No one thought it was real money. In my view we should get rid of the $1 & $2 and replace them with coins. No matter what people think, the $1, $2 just like the penny will never be eliminated.