STAY GOLD COLOURS

BLACK   HEX #000000   RGB 0 0 0       CMYK 60 40 40 100 (rich black in print)
WHITE   HEX #FFFFFF   RGB 255 255 255 CMYK 0 0 0 0 (paper white)
GOLD    HEX #FECF0A   RGB 254 207 10  CMYK 0 15 100 0 (match #FECF0A on a proof)

Balance: roughly 70% white, 25% black, 5% gold. One gold thing per piece.
Works: black on white, white on black, black on gold, gold on black.
Never: white on gold, gold on white.