When the Ford Falcon was originally introduced, the colour options available were updated every year, as opposed to every model, which would become a thing when the Falcon was a fully Australian design with the introduction of the XA, in 1972.
6 Pebble Beige
A Raven Black
B Royal Maroon
F Gulfstream Aqua
I Lime gold
M Wimbledon White
N Diamond Blue
O Seafoam Green
Q Brittney Blue
R Highland Green
T Candyapple Red
U Tahoe Turquoise
W Meadowlark Yellow
X Presidential Blue
Y Sunlit Gold