Australian Shepherds come in '4' colors
Blue Merle , Black Tri/Bi , Red Merle , Red Tri/Bi

there is a variation in the 'shades' of color and the amount of copper & white trim
I chose the following pictures to help show that difference

**note:  "Tri" means the dog has trim colors of both 'copper & white'
"Bi" means the dog has only 1 trim color
BLUE  MERLE with Copper & White trim

"JOURNEY"                                                    "BOSTON"
BLACK  TRI   (has Copper & White trim)

"VEGAS"                                          "FRASIER"
RED  MERLE   with Copper & White trim

"CHEVY"                                                           "CHINA"
RED  TRI   (has Copper & White trim)

"TAYLOR"                                               "KANSAS"