WASHINGTON — Close your eyes, reach into your wallet and try to distinguish between a $1 bill and a $5 bill. Impossible? It’s also discriminatory, a federal appeals court says.

Since all paper money feels pretty much the same, the government is denying blind people meaningful access to the currency, the U.S. Court of Appeals for the District of Columbia Circuit ruled yesterday. The decision could force the Treasury Department to make bills of different sizes or print them with raised markings or other distinguishing features.

The American Council of the Blind sued for such changes, but the government has been fighting the case for about six years.

The U.S. acknowledges the current design hinders blind people, but it argues that they have adapted. Some rely on store clerks to help, some use credit cards and others fold certain corners to help distinguish between bills.

“I don’t think we should have to rely on people to tell us what our money is,” the Council of the Blind president, Mitch Pomerantz, said.

Others say they manage but not always easily.

“When I pay for something and I get change back, I’m very slow and methodical. I’ll ask, ‘Is this the 10? Is this the five? Is this the one?'” the library director at the Perkins School for the Blind, which is Helen Keller’s alma mater, Kim Charlson, said.

Some use electronic currency readers. But they can be expensive, and they sometimes have problems with new $20 bills.