diff --git a/frontend_nuxt/assets/global.css b/frontend_nuxt/assets/global.css
index 294f21e43..0cd7713de 100644
--- a/frontend_nuxt/assets/global.css
+++ b/frontend_nuxt/assets/global.css
@@ -34,6 +34,7 @@
   --page-max-width-mobile: 900px;
   --article-info-background-color: #f0f0f0;
   --activity-card-background-color: #fafafa;
+  --poll-option-button-background-color: rgb(218, 218, 218);
 }
 
 [data-theme='dark'] {
@@ -61,6 +62,7 @@
   --blockquote-text-color: #999;
   --article-info-background-color: #747373;
   --activity-card-background-color: #585858;
+  --poll-option-button-background-color: #3a3a3a;
 }
 
 :root[data-frosted='off'] {
diff --git a/frontend_nuxt/pages/posts/[id]/index.vue b/frontend_nuxt/pages/posts/[id]/index.vue
index c6a8f2a2b..97630fee3 100644
--- a/frontend_nuxt/pages/posts/[id]/index.vue
+++ b/frontend_nuxt/pages/posts/[id]/index.vue
@@ -1291,7 +1291,7 @@ onMounted(async () => {
   color: var(--text-color);
   padding: 5px 10px;
   border-radius: 8px;
-  background-color: rgb(218, 218, 218);
+  background-color: var(--poll-option-button-background-color);
   cursor: pointer;
   width: fit-content;
 }