diff --git a/layouts/partials/comments/utterances.html b/layouts/partials/comments/utterances.html
index a2d4db73..78bf9698 100644
--- a/layouts/partials/comments/utterances.html
+++ b/layouts/partials/comments/utterances.html
@@ -6,18 +6,7 @@
 
 <script>
   // load comments
-  var getTheme = localStorage && localStorage.getItem("theme");
-
-  getTheme =
-    getTheme == null
-      ? window.matchMedia &&
-        window.matchMedia("(prefers-color-scheme: light)").matches
-        ? "light"
-        : "dark"
-      : getTheme;
-  getTheme = getTheme == null ? "dark" : getTheme;
-
-  let theme = getTheme === "dark" ? "gruvbox-dark" : "github-light";
+  let theme = "dark-blue";
   let script = document.createElement("script");
   script.src = "https://utteranc.es/client.js";
   script.setAttribute("repo", '{{ print $username "/" $repository }}');
diff --git a/themes/hugo-theme-gruvbox/assets/css/critical/15-colors.css b/themes/hugo-theme-gruvbox/assets/css/critical/15-colors.css
index 73b02af8..08628bc6 100644
--- a/themes/hugo-theme-gruvbox/assets/css/critical/15-colors.css
+++ b/themes/hugo-theme-gruvbox/assets/css/critical/15-colors.css
@@ -6,43 +6,6 @@
   {{ $backgroundColor = "bg0_h" }}
 {{ end }}
 
-:root[data-theme="light"] {
-  --bg: var(--{{ $backgroundColor }});
-  --bg0: #fbf1c7;
-  --bg0_h: #f9f5d7;
-  --bg0_s: #f2e5bc;
-  --bg1: #ebdbb2;
-  --bg2: #d5c4a1;
-  --bg3: #bdae93;
-  --bg4: #a89984;
-  --fg: var(--fg1);
-  --fg0: #282828;
-  --fg1: #3c3836;
-  --fg2: #504945;
-  --fg3: #665c54;
-  --fg4: #7c6f64;
-  --gray1: var(--fg4);
-  --gray2: #928374;
-  --red1: #cc241d;
-  --red2: #9d0006;
-  --green1: #98971a;
-  --green2: #797403;
-  --yellow1: #d79921;
-  --yellow2: #b57614;
-  --blue1: #458588;
-  --blue2: #076678;
-  --purple1: #b16286;
-  --purple2: #8f3f71;
-  --aqua1: #689d6a;
-  --aqua2: #427b58;
-  --orange1: #d65d0e;
-  --orange2: #af3a03;
-
-  & .light--hidden {
-    display: none;
-  }
-}
-
 :root[data-theme="dark"] {
   --bg: var(--{{ $backgroundColor }});
   --bg0: #1a1b26;
@@ -51,10 +14,10 @@
   --bg1: #181922;
   --bg2: #32344a;
   --bg3: #665c54;
-  --bg4: #7c6f64;
+  --bg4: #32344a;
   --fg: var(--fg1);
   --fg0: #ad8ee6;
-  --fg1: #a9b1d6;
+  --fg1: #acb0d0;
   --fg2: #7da6ff;
   --fg3: #9ece6a;
   --fg4: #32344a;
diff --git a/themes/hugo-theme-gruvbox/layouts/partials/header.html b/themes/hugo-theme-gruvbox/layouts/partials/header.html
index b573ccb1..ece30bb9 100644
--- a/themes/hugo-theme-gruvbox/layouts/partials/header.html
+++ b/themes/hugo-theme-gruvbox/layouts/partials/header.html
@@ -51,12 +51,4 @@
       </ul>
     </div>
   </nav>
-
-  <button class="theme__toggle light--hidden" aria-label="Toggle light mode">
-    {{ partial "icons/tabler-icon.html" "sun" }}
-  </button>
-
-  <button class="theme__toggle dark--hidden" aria-label="Toggle dark mode">
-    {{ partial "icons/tabler-icon.html" "moon" }}
-  </button>
 </header>