Check what you see in the Acrobat window against the object properties in the Properties Editor (or Viewer). Change the magnification or the focus in the Acrobat window to improve your view.
For a selected object, the Properties Editor (or Viewer) shows:
~nn.n
value appears in a color separations cell for an object, where nn.n
is a value between 0 and 100 percent. This is the tint value for an image or gradient.#nn.n
value appears in a color separations cell for an object, where nn.n
is a value between 0 and 100 percent. This is the mask and tint value for a complex bitmap.nn.n
value appears in a color separations cell for an object, where nn.n
is a value between 0 and 100 percent. This is the tint of the separation color.off
)