Data Defined Labeling in QGIS

A useful and powerful way to define layer symbology and labels is using data-defined properties. While many of the options are self-explanatory, others require knowledge about the valid options.

Note: These options are currently only available for the “old” labeling under “Advanced” tab.

Position

Valid options are: left, right, bottom, top, bottom_left, bottom_right, top_left, top_right

Color

I successfully used the color names red, blue, green, black, yellow, and orange.  Alternatively, you can enter color hex-codes: red = #ff0000