diff --git a/theme/blog_share_theme_gruvbox.css b/theme/blog_share_theme_gruvbox.css
index 5b37ac3..fa11f63 100644
--- a/theme/blog_share_theme_gruvbox.css
+++ b/theme/blog_share_theme_gruvbox.css
@@ -20,6 +20,7 @@ html.theme-light {
     --text-link: #076678;
     --text-menu-active: #fbf1c7;
     color-scheme: light;
+    --model-viewer-color: #79740e;
 }
 
 html.theme-dark {
@@ -37,6 +38,7 @@ html.theme-dark {
     --text-link: #83a598;
     --text-menu-active: #1d2021;
     color-scheme: dark;
+    --model-viewer-color: #b8bb26;
 }
 
 body {