Use theming classes for your application. every good designed application can use up to 3 colors. define these classes at the beginning of your application.
$skin-color-1: black;
$skin-color-2: white;
.skin-color-1{
color: $skin-color-1;
}
.skin-color-2{
color: $skin-color-2;
}
.skin-bg-color-1{
background-color: $skin-color-1;
}
.skin-bg-color-2{
background-color: $skin-color-2;
}
then pass these classes to every html object with its color, and remove the color properties that is already assigned.