B-B-R-O-Y-G-B-V-G-W is the color chart for resistors The mnemonic "Bad Boys Rape Our Young Girls But Violet Gives Willingly" and Black is zero and brown is 1, on an on in sequence. Something I learned in 12th grade Electronics class way back in 1979. One of those things that just sticks in ones memory then of course in Art class they taught us ROY G VIB for the color spectrum from Red-Orange-yellow-green-vilot-indigo-black
