diff --git a/.changeset/orange-experts-hug.md b/.changeset/orange-experts-hug.md
new file mode 100644
index 0000000000..1bf8b4a7d7
--- /dev/null
+++ b/.changeset/orange-experts-hug.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-api-docs': patch
+---
+
+Fix dark theme Swagger's clear button font color.
diff --git a/plugins/api-docs/src/components/OpenApiDefinitionWidget/OpenApiDefinition.tsx b/plugins/api-docs/src/components/OpenApiDefinitionWidget/OpenApiDefinition.tsx
index cff21dcf78..c67088476b 100644
--- a/plugins/api-docs/src/components/OpenApiDefinitionWidget/OpenApiDefinition.tsx
+++ b/plugins/api-docs/src/components/OpenApiDefinitionWidget/OpenApiDefinition.tsx
@@ -25,6 +25,9 @@ const useStyles = makeStyles(theme => ({
       fontFamily: theme.typography.fontFamily,
       color: theme.palette.text.primary,
 
+      ['& .btn-clear']: {
+        color: theme.palette.text.primary,
+      },
       [`& .scheme-container`]: {
         backgroundColor: theme.palette.background.default,
       },