The 3d Orbitals

Note that only the total electron density is shown for each orbital, i.e., the phases for each orbital are not shown.

dxy

x-axis = yellow
y-axis = green
z-axis = blue

Note that the electron density (1) lies in the plane defined by the x and y axes, and (2) lies between the x and y axes.
dxz

x-axis = yellow
y-axis = green
z-axis = blue

Note that the electron density (1) lies in the plane defined by the x and z axes, and (2) lies between the x and z axes.
dyz

x-axis = yellow
y-axis = green
z-axis = blue

Note that the electron density (1) lies in the plane defined by the y and z axes, and (2) lies between the y and z axes.
dx2-y2

x-axis = yellow
y-axis = green
z-axis = blue

Note that the electron density (1) lies in the plane defined by the x and y axes, and (2) lies directly along the x and y axes.
dz2

x-axis = yellow
y-axis = green
z-axis = blue

Note that the electron density lies directly along the z axis.