Darken gray scss variables

src/assets/scss/variables.scss

@@ -6,10 +6,10 @@ $color__text--primary: rgba(0, 0, 0, 0.87);
 $color__text--secondary: rgba(0, 0, 0, 0.54);
 
 $color__lightgray--primary: #F5F5F5;
-$color__lightgray--darker: #EEEEEE;
+$color__lightgray--darker: #D8D8D8;
 $color__lightgray--darkest: #E0E0E0;
 
-$color__gray--primary: #EEEEEE;
+$color__gray--primary: #D8D8D8;
 $color__gray--darker: #E0E0E0;
 $color__gray--darkest: #BDBDBD;