Border line color


Set the color used to draw the element's border line.

Property values

This property is used to set each of these four border color properties, which may also be set one by one:

This property expects anywhere from one to four values, with their interpretation as follows:

number of values sides effected
1 value Sets all four sides: top, right, bottom, left
2 values 1st value: top and bottom edges
2nd value: right and left edges
3 values 1st value: top edge
2nd value: right and left edges
3rd value: bottom edge
4 values 1st value: top edge
2nd value: right edge
3rd value: bottom edge
4th value: left edge

Specify the border colors using any one of these color value formulas:

formula red green blue
'currentColor' Use the text's color
6-digit hex #ff0000 #00ff00 #0000ff
3-digit hex #f00 #0f0 #00f
RGB rgb(255,0,0) rgb(0,255,0) rgb(0,0,255)
RGBA rgb(255,0,0,1.0) rgb(0,255,0,1.0) rgb(0,0,255,1.0)
HSL hsl(0,100,50) hsl(120,100,50) hsl(240,100,50)
HSLA hsla(0,100,50,1.0) hsla(120,100,50,1.0) hsla(240,100,50,1.0)
CSS names aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, purple, red, silver, teal, white, yellow *

The fourth item of the RGBA and HSLA formulas is a transparency/opacity value, from 0.0 (fully transparent) to 1.0 (fully opaque).

* Only the first 16 standard CSS colors are listed. There are 124 more defined in the X11 color standard.


/* the top and bottom edges are black, the right and left edges are gray */            

border-color: black gray;

style > framing > border-colorBorder line color