diff --git a/scss/_variables.scss b/scss/_variables.scss
index 6f07176ae9..d100058e55 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -401,6 +401,7 @@ $small-font-size:             $font-size-sm !default; // Boosted mod → 14px
 $small-line-height:           $line-height-sm !default; // Boosted mod → 16px
 
 $text-muted:                  $gray-700 !default;
+$text-muted-dark:             $gray-600 !default; // Boosted mod: ensure contrast on dark background
 
 $blockquote-small-color:      $gray-700 !default;
 $blockquote-small-font-size:  $small-font-size !default;
diff --git a/scss/mixins/_background-variant.scss b/scss/mixins/_background-variant.scss
index 3801828e0c..c6ecea3429 100644
--- a/scss/mixins/_background-variant.scss
+++ b/scss/mixins/_background-variant.scss
@@ -5,7 +5,7 @@
 @mixin bg-variant($parent, $color, $ignore-warning: false) {
   $contrast: color-yiq($color); // Boosted mod: ensure contrast
   #{$parent} {
-    color: $contrast; // Boosted mod: ensure contrast
+    color: $contrast !important; // Boosted mod: ensure contrast
     background-color: $color !important;
   }
   a#{$parent},
diff --git a/scss/utilities/_text.scss b/scss/utilities/_text.scss
index 4a8e77f162..e7b3d36652 100644
--- a/scss/utilities/_text.scss
+++ b/scss/utilities/_text.scss
@@ -45,10 +45,12 @@
 
 // Contextual colors
 
+// Boosted mod: ensure contrast
 .text-white {
   color: $white !important;
   background-color: $black !important;
 }
+// end mod
 
 @each $color, $value in $theme-colors {
   // Boosted mod: disallow functionnal colors for text
@@ -58,17 +60,34 @@
   // end mod
 }
 
-// Boosted mod
+// Boosted mod: ensure contrast
+.text-body {
+  color: $body-color !important;
+  background-color: $body-bg !important;
+}
+
+.text-muted {
+  color: $text-muted !important;
+  background-color: $white !important;
+}
+
 .bg-dark,
 .table-dark,
 .navbar-dark {
   @include text-emphasis-variant(".text-primary", $orange-2, true);
+
+  .text-body {
+    color: $body-bg !important;
+    background-color: $body-color !important;
+  }
+
+  .text-muted {
+    color: $text-muted-dark !important;
+    background-color: $black !important;
+  }
 }
 // end mod
 
-.text-body { color: $body-color !important; }
-.text-muted { color: $text-muted !important; }
-
 //.text-black-50 { color: rgba($black, .5) !important; } // Boosted mod
 //.text-white-50 { color: rgba($white, .5) !important; } // Boosted mod