Black(0), Brown(1), Red(2), Orange(3), Yellow(4), Green(5), Blue(6), Violet(7), Gray(8), White(9), Gold(5%), Silver(10%), None(20%)

 Mnemonic:
Big brown rabbits often yield great big vocal groans when gingerly slapped

 Mnemonic:
Bad boys run our young girls behind victory garden walls

 Mnemonic:
Bad Beer Rots Our Young Guts But Vodka Goes Well – Get Some Now

 Mnemonic:
B.B.ROY (of) Great Britain (has a) Very Good Wife (wearing) Gold and Silver Necklace