increased blue in dark-1-5, dark-3 and dark-4

public/sass/_variables.dark.scss

@@ -19,10 +19,10 @@ $green-shade: #23843b;
 // -------------------------
 $black: #000;
 $dark-1: #141414;
-$dark-1-5: #161719;
+$dark-1-5: #16171a;
 $dark-2: #1f1f20;
-$dark-3: #222426;
-$dark-4: #343436;
+$dark-3: #1f2124;
+$dark-4: #323436;
 $dark-5: #424345;
 $gray-1: #555555;
 $gray-2: #8e8e8e;