# Background row color

_cformat_ switch:  **b**

Allows you to apply custom background colors to individual rows. This is the same concept as _cformat_ **c** except that it only uses colors defined by [RGBbg](rgbbgadvancedcoldef.md) clauses (either on the pseudo column or on any other column). The column must contain a single character matching an [RGB Color Index](rgbcolorindex.md).

Note that as with with other column types used to encode row attributes (see _cformat_ **b**, **c**, **C**, **f**, **@**), rather than row data, you almost certainly want to pair this with the code **H** to hide the column.

[Sample image here.](https://www.flickr.com/photos/147576700@N02/50584635328/in/album-72157716821830643/)