Template:Rail line/doc/colours

Colours
The col parameter used to set the colour of the two vertical bands which separate the three main columns. If blank or omitted, the bands are present but their colours are undefined, and the appearance may vary between web browsers.
 * col
 * lightcol

The colour set by col is normally associated with the railway company or operator given in the route parameter; if that parameter indicates both a major company and a minor company, or a rail operator and one of its services, col should indicate the more important of the two. To indicate the less important of the two, the optional lightcol parameter may be used; it will add a horizontal coloured band beneath the text of the route parameter. If lightcol is blank or omitted, the band is also omitted.

For consistency, colours should be specified using colour templates, e.g. col lightcol. The predefined colours are at WikiProject UK Railways/Colours list. Colours may also be given in the form of a six-character hex triplet. In either case, the initial  sign is omitted, e.g. be2d2c d77f7e.

The lightcol parameter preferred to the older method of setting a coloured background for some of the text, which had accessibility problems.