less - Conditional CSS based on background color variable

Question

Is it possible to set a color based on the lightness/darkness of a less variable?

Currently I have the following code:

li {
    color: darken(@bodyBackground, 10%);
}

This works providing @bodyBackground is a light color. However if it was a dark color I'd like to use lighten(@bodyBackground, 10%). Is this possible with LESS?

Answer 1

There's contrast function, e.g.:

li {
    color: contrast(@bodyBackground,
            lighten(@bodyBackground, 13%),
             darken(@bodyBackground, 13%));
}