diff --git a/assets/scss/_variables.scss b/assets/scss/_variables.scss
index c175699..f7fcc54 100644
--- a/assets/scss/_variables.scss
+++ b/assets/scss/_variables.scss
@@ -27,16 +27,22 @@ tfoot td {
 // Adapt the SVG logo color to the colorscheme
 
 [data-theme=light],
-  :root:not([data-theme=dark]) {
-  --logo-color: var(--pico-color);
+:root:not([data-theme=dark]) {
+  --logo-color: var(--pico-h1-color);
 }
 
 @media only screen and (prefers-color-scheme: dark) {
   :root:not([data-theme]) {
-    --logo-color: var(--pico-color);
+    --logo-color: var(--pico-h1-color);
+    // Use the pico color of the light theme to improve contrast
+    // TODO: Explore if a variable could be used here
+    --pico-mark-color: #373c44;
   }
 }
 
 [data-theme=dark] {
-  --logo-color: var(--pico-color);
+  --logo-color: var(--pico-h1-color);
+  // Use the pico color of the light theme to improve contrast
+  // TODO: Explore if a variable could be used here
+  --pico-mark-color: #373c44;
 }