SCSS Map Function
Using #SCSS you can specify a a set of values in a map for easier access. Declare your map as a variable and reference it with the map-get SCSS function.
$colors: (
"green": #008000,
"red": #FF4136,
"blue": #0074D9,
);
Reference that variable with the map-get function.
.bg-lg {
background-color: map-get($colors, "green");
}
Read more about it here