I'm assuming that this question is about Zurb Foundation 4.
According to Zurb Foundation 4 document,
button()
mixin takes six arguments,
and button color is the second argument. Therefore you can specify button color as follows:
@import "foundation/components/buttons";
.button-facebook{
$bg: #000;
@include button($button-sml, $bg, false, false, false, false);
}
The first argment is padding of the button, you can use $button-tny
, $button-sml
, $button-med
, $button-lrg
, emCalc(NNNpx)
, or whatever.
see Zurb Foundation 4 document for more detail:
http://foundation.zurb.com/docs/components/buttons.html