diff --git a/modules/primer-support/lib/variables/misc.scss b/modules/primer-support/lib/variables/misc.scss
index ceca69ea..cd6414f5 100644
--- a/modules/primer-support/lib/variables/misc.scss
+++ b/modules/primer-support/lib/variables/misc.scss
@@ -19,7 +19,7 @@ $box-shadow-extra-large: 0 10px 50px rgba($black, 0.07) !default;
 
 // Tooltips
 $tooltip-max-width: 250px !default;
-$tooltip-background-color: rgba($black, 0.8) !default;
+$tooltip-background-color: $black;
 $tooltip-text-color: $white !default;
 $tooltip-delay: 0.4s !default;
 $tooltip-duration: 0.1s !default;