If I had a penny for every dime...?

If I had a penny for every dime, and 2 dimes for every nickel, and 5 nickels every dollar. I have 500 dollars, my cousin takes half of it from me, and that half of 500 dollars consists of 20 nickels, and 2 20 dollar bills, a quarter quarters and the rest are pennies... What is the color of a penny?