The outline-color property allows you to specify the color of the outline. Its value should either be a color name, a hex color, or an RGB value, as with the color and border-color properties.
Example
You can try to run the following code to implement outline-color property −
<html> <head> </head> <body> <p style = "outline-width:thin; outline-style:solid;outline-color:blue"> This text is having thin solid blue outline. </p> <br /> </body> </html>