diff --git a/.changeset/fix-card-header-cap-bg.md b/.changeset/fix-card-header-cap-bg.md
new file mode 100644
index 000000000..8086384ca
--- /dev/null
+++ b/.changeset/fix-card-header-cap-bg.md
@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Fixed `.card-header` background-color to respect the `--tblr-card-cap-bg` CSS variable instead of being silently overridden by a `background: transparent` shorthand.
diff --git a/core/scss/ui/_cards.scss b/core/scss/ui/_cards.scss
index f927d157a..f622fcc9d 100644
--- a/core/scss/ui/_cards.scss
+++ b/core/scss/ui/_cards.scss
@@ -220,7 +220,7 @@ Stacked card
   color: inherit;
   display: flex;
   align-items: center;
-  background: transparent;
+  background-color: var(--#{$prefix}card-cap-bg);
 
   &:first-child {
     @include border-radius(var(--#{$prefix}card-border-radius) var(--#{$prefix}card-border-radius) 0 0);