Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

$blue: #3479a5;
$blue--dark: #2a6184;
$green: #87ab4f;
$green--dark: #6c893f;

$section-themes: (
    'blue': (
        primary: $blue,
        secondary: $blue--dark
    ),
    'green': (
        primary: $green,
        secondary: $green--dark
    )
);

@each $theme, $colors in $section-themes {
 
    .t-#{$theme} {
 
        .t-border {
            border-color: map-get($colors, primary);
        }
 
        .t-bg,
        &.pod--themed {
            background-color: map-get($colors, primary);
        }
 
        .t-color,
        .t-link {
            color: map-get($colors, primary);
        }
 
        .t-link:hover {
            color: map-get($colors, secondary);
        }
    }
}

SassMeister-output.css

.t-blue .t-border {
  border-color: #3479a5;
}
.t-blue .t-bg, .t-blue.pod--themed {
  background-color: #3479a5;
}
.t-blue .t-color,
.t-blue .t-link {
  color: #3479a5;
}
.t-blue .t-link:hover {
  color: #2a6184;
}

.t-green .t-border {
  border-color: #87ab4f;
}
.t-green .t-bg, .t-green.pod--themed {
  background-color: #87ab4f;
}
.t-green .t-color,
.t-green .t-link {
  color: #87ab4f;
}
.t-green .t-link:hover {
  color: #6c893f;
}