diff --git a/.changeset/fresh-gifts-smile.md b/.changeset/fresh-gifts-smile.md
new file mode 100644
index 0000000000..bde5edc4b1
--- /dev/null
+++ b/.changeset/fresh-gifts-smile.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs-module-addons-contrib': major
+---
+
+textsize-fix value label text color
diff --git a/plugins/techdocs-module-addons-contrib/src/TextSize/TextSize.tsx b/plugins/techdocs-module-addons-contrib/src/TextSize/TextSize.tsx
index 50cc59b814..167f9c7c7c 100644
--- a/plugins/techdocs-module-addons-contrib/src/TextSize/TextSize.tsx
+++ b/plugins/techdocs-module-addons-contrib/src/TextSize/TextSize.tsx
@@ -70,7 +70,7 @@ const StyledSlider = withStyles(theme => ({
     left: '50%',
     transform: 'scale(1) translate(-50%, -5px) !important',
     '& *': {
-      color: theme.palette.common.black,
+      color: theme.palette.textSubtle,
       fontSize: theme.typography.caption.fontSize,
       background: 'transparent',
     },