Inject data into Sass variables in Ember application

I'm working on an application that renders many, separate "sites" as subdirectories- e.g. /client/1, /client/2, etc. For each of these, two color values can be specified in the admin portion of the application.

I'd like to know if there's a method to inject the values, which were initially posted to and then retrieved from the back-end API by Ember, into a SCSS file for preprocessing?

I've found no solution thus far.